L'infertilité se définit habituellement comme une année d'essais sans grossesse, ou six mois lorsque la femme a dépassé trente-cinq ans, et une grande partie en est modifiable. Les étapes les mieux étayées par les preuves sont simples : programmer les rapports sur la fenêtre de fécondité, prendre de l'acide folique avant de concevoir, et utiliser le létrozole pour le trouble d'ovulation fréquent du SOPK. Traitez aussi les problèmes d'infertilité masculine ; l'homme est en cause dans environ la moitié des couples. Plusieurs compléments populaires font moins que ce qu'ils promettent. L'acupuncture autour de la FIV n'a pas conduit à davantage de naissances vivantes dans les grands essais.
Le grattage de l'endomètre, un complément à la FIV, n'a fait aucune différence. Exiger une perte de poids avant le traitement n'a pas augmenté le taux de naissances dans l'essai qui l'a testé. Le tabagisme et la consommation excessive d'alcool réduisent bel et bien les chances, et cela vaut la peine d'être changé. Le bon moment pour se faire évaluer arrive plus tôt que beaucoup ne le pensent, et attendre au-delà ne fait que perdre du temps.
Practice Ranking
Every practice we track for Fertility and Trying to Conceive: what improves the odds, ranked by how well the evidence supports it for this condition. Strength describes the evidence, not our endorsement.
2 practices · 1 to start with
| # | Practice | Evidence | Type | Cost | Effort | Results In | Add to plan |
|---|---|---|---|---|---|---|---|
| 1 | Quitting Smoking: What It Does to the Body and the Methods That Actually Work Smoking lowers fertility in both partners; quitting helps. | Moderate | Pro | Free to $$ | Hard | Days to Longer | |
| 2 | Reduce Alcohol and Your Health: What the Evidence Shows Now Cutting heavy drinking is a reduce-lever while trying to conceive. | Emerging | Self-Directed | Free | Moderate to Hard | Weeks to Months | |
Default order puts the best-supported practices first, with self-directed care ahead of clinical options. Click any row to open the practice.
What It Is
By the time a couple has tried this long without conceiving, a cause is usually worth looking for. Reaching that point is a prompt to get evaluated, so a cause can be found and treated. Among couples still trying at the one-year mark, about half have a cause worth finding.
What Helps
Two simple steps carry the most weight, and neither is exotic. First, time sex to the fertile window. Regular sex every one to two days across the week before ovulation gives the best per-cycle odds, at no cost, from the first month. Second, start folic acid before you conceive. Around conception it cut the risk of serious spine and brain defects by about 72% in women at high risk (MRC Vitamin Study, Lancet 1991). Folic acid protects the pregnancy. It does not raise the chance of conceiving, so begin it before trying.
For PCOS, letrozole outperforms the older clomiphene. Over up to five cycles it produced more live births, 27.5% versus 19.1%, with higher ovulation rates and no rise in serious birth defects. It is clinician-monitored and works specifically for the ovulation trouble of PCOS.
Naming the cause produces the biggest gains, because each cause has its own fix. Ovulation induction restarts a stalled cycle in PCOS. Surgery or IVF can work around tubes that are blocked or damaged by pelvic infection or endometriosis. The male side matters as much as the female workup. A male factor can be treated or bypassed with assisted reproduction. It also improves with stopping smoking, keeping the testes cool, and repairing a varicocele where one is found. Our male fertility guide covers that side in full.
Antioxidant supplements for men may help a little. A Cochrane review found they might raise the chance of a live birth, but the trials are few, small, and low quality, so the signal is uncertain (de Ligny, 2022). They are low-cost and low-risk.
The Research & Studies
Everything here is based on the research we have collected and checked, sorted into groups and ordered with the strongest evidence first. Click any claim to open the studies behind it.
Fertility
Letrozole beat clomiphene for PCOS live births, 27.5% versus 19.1%
For women with polycystic ovary syndrome who are not ovulating, the drug letrozole works better than the older clomiphene: more ovulation and more live births, with no rise in serious birth defects.
The PPCOS II trial randomized 750 women with PCOS to letrozole or clomiphene for up to five cycles. Cumulative live-birth rate was 27.5% with letrozole versus 19.1% with clomiphene (rate ratio 1.44, 95% CI 1.10 to 1.87), with higher cumulative ovulation and pregnancy rates. There were four major congenital anomalies with letrozole and one with clomiphene, a difference that was not statistically significant. On the strength of this trial, letrozole became a first-line agent for ovulation induction in PCOS. It applies to anovulatory PCOS specifically, not to unexplained infertility or other causes.
Ovulation induction is a prescribed treatment monitored by a clinician; letrozole is the preferred first-line agent for anovulatory PCOS, and the choice and dose are made with the person managing your care.
The study · 1
Legro 2014, N Engl J Med · N Engl J Med
Folic acid before conception cut neural-tube defects by 72%
Prendre de l'acide folique avant et en début de grossesse réduit fortement le risque de malformations graves de la colonne vertébrale et du cerveau chez le bébé. C'est un soin préconceptionnel standard. Cela ne vous rend pas plus fertile ; cela protège la grossesse une fois qu'elle survient.
The MRC Vitamin Study was a randomized, double-blind trial across 33 centers in seven countries in women at high risk because of a previous affected pregnancy. Folic acid (4 mg daily) around the time of conception reduced the recurrence of neural-tube defects by 72% (relative risk 0.28, 95% CI 0.12 to 0.71). Other vitamins showed no such effect. This established periconceptional folic acid as standard preconception care and underlies the general advice to start folic acid before trying. The benefit is prevention of a birth defect, not an increase in the chance of conceiving, which is a common misunderstanding worth being clear about.
Start folic acid before you try to conceive, at the standard preconception dose, or a higher dose if you have had an affected pregnancy or another risk factor, as advised by your clinician. It protects the pregnancy, not boosting fertility.
The study · 1
Endometrial scratching did not improve IVF live births, 26.1% versus 26.1%
A popular paid add-on to IVF, scratching the lining of the womb before a cycle, made no difference to the number of babies in a large trial. It stands for a wider pattern of expensive IVF extras that promise more than they deliver.
A 2019 international randomized trial (New England Journal of Medicine) assigned 1364 women undergoing IVF to endometrial scratching or no scratching before their cycle. Live birth occurred in 26.1% of both groups (adjusted odds ratio 1.00, 95% CI 0.78 to 1.27), with no difference in ongoing pregnancy, clinical pregnancy or miscarriage. Endometrial scratching had been widely offered and charged for on the theory it improves implantation; this trial found no benefit. It is a concrete example of the broader problem of IVF add-ons marketed ahead of the evidence, and a reason to ask what any extra actually adds before paying for it.
Before paying for any IVF add-on, ask what randomized evidence shows it improves live births; for endometrial scratching specifically, a large trial showed no benefit, so it is a cost without a demonstrated return.
The study · 1
Lensen 2019, N Engl J Med · N Engl J Med
Conception happens only in the six days ending on ovulation
You can only conceive in a narrow six-day stretch each cycle, ending on the day the egg is released. Targeting that window, instead of a single calendar day, is one of the simplest things that raises the monthly odds.
In a prospective cohort, 221 healthy women planning pregnancy recorded intercourse daily and identified ovulation by urinary hormone metabolites. Conception was virtually confined to a six-day interval ending on the day of ovulation, with the highest probability from intercourse in the two days before ovulation. No pregnancies followed intercourse outside this window. The finding maps the biology of the fertile window and is the basis for advice to have regular intercourse across the days leading up to ovulation, not trying to hit a single day.
Aim for intercourse every one to two days across the week leading up to and including ovulation, not saving it for a single predicted day. Ovulation kits, cycle tracking and cervical-mucus changes all help locate the window.
The study · 1
Wilcox 1995, N Engl J Med · N Engl J Med
La perte de poids avant le traitement n'a pas augmenté les naissances, 27.1 % contre 35.2 %
Losing weight can restore ovulation in some women, but making a six-month weight-loss program a required first step before fertility treatment did not lead to more healthy births overall, mostly because of the delay it added. More women in the lifestyle group did conceive naturally.
L'essai LIFEstyle a randomisé 577 femmes infertiles obèses (IMC de 29 ou plus) vers une intervention de six mois sur le mode de vie avant traitement ou vers un traitement de fertilité immédiat. Le critère principal, la naissance par voie vaginale d'un singleton en bonne santé à terme dans les 24 mois, est survenu chez 27.1 % du groupe mode de vie contre 35.2 % du groupe traitement immédiat (rapport de taux 0.77, IC à 95 % de 0.60 à 0.99). Les conceptions naturelles étaient plus fréquentes dans le bras mode de vie. La lecture est nuancée : une perte de poids modeste peut restaurer l'ovulation et vaut la peine d'être poursuivie, mais imposer un programme prolongé avant le traitement, et le délai que cela crée, n'a pas amélioré le résultat final, ce qui compte le plus lorsque l'âge presse.
Si le poids affecte l'ovulation, une perte de poids modeste vaut la peine d'être poursuivie, mais pas comme condition préalable indéfinie retardant le traitement lorsque le temps est compté. C'est un sujet à aborder avec votre clinicien concernant votre âge et votre cause spécifique.
The study · 1
Mutsaerts 2016, N Engl J Med · N Engl J Med
Acupuncture around IVF did not raise live births, 18.3% versus 17.8%
In the best trial, having acupuncture around IVF did not lead to more babies than a fake needle procedure. Chinese medicine is sought out for fertility a great deal, and on this specific question the evidence points to no gain in live births.
A 2018 multicenter randomized trial (JAMA) enrolled 848 women undergoing IVF at 16 sites in Australia and New Zealand, assigning them to acupuncture or a sham (non-insertive) needle control around the time of embryo transfer. Live births occurred in 18.3% of the acupuncture group and 17.8% of the sham group (risk ratio 1.02, 95% CI 0.76 to 1.38), with no significant difference in clinical pregnancy either. This is the largest and most rigorous trial on the question, and it found no benefit of acupuncture on IVF live-birth rates over sham. Stating this plainly is part of doing right by a vulnerable audience, even where Chinese medicine is most sought.
If acupuncture is something you find calming during a demanding treatment, that is a fair reason to have it; the evidence does not support it as a way to raise the live-birth rate from IVF, so it is best seen as support, not a fertility treatment.
The study · 1
Smith 2018, JAMA · JAMA
Chinese herbal medicine tied to about double the pregnancy rate in low-quality trials
Pooled studies suggest Chinese herbal medicine may raise pregnancy rates for female infertility, but the trials are small and low quality, so the real effect is likely smaller and the result should be read as a signal to study, not a proven treatment.
A 2015 updated meta-analysis pooled randomized and non-randomized studies of Chinese herbal medicine for female infertility, reporting roughly a two-fold increase in pregnancy rates over 3 to 6 months compared with Western medical treatment. The authors themselves flagged serious limitations: many included studies were of low methodological quality, poorly randomized or non-randomized, mostly from a single region, and prone to publication bias, and pattern-based prescribing makes trials hard to standardize. The pooled figure should therefore be read as an early, low-certainty signal that warrants proper trials, not as evidence that a herbal formula can be relied on to achieve pregnancy.
If you wish to use Chinese herbal medicine, do so with a qualified practitioner who has assessed your pattern and alongside a full medical workup, understanding the evidence is early and low-certainty, not a substitute for treatment matched to your cause.
The study · 1
Ried 2015, Complement Ther Med · Complement Ther Med
Les antioxydants pour les hommes pourraient augmenter les naissances vivantes, sur des données de très faible certitude
Les compléments antioxydants pour les hommes pourraient améliorer la chance de naissance vivante, mais les études à l'origine de ce constat sont peu nombreuses, petites et de faible qualité, de sorte que le bénéfice est très incertain. Il s'agit d'un signal faible, pas d'un traitement fiable.
Une revue Cochrane de 2022 a examiné les antioxydants (comme la vitamine E, la vitamine C, le zinc, le sélénium, la carnitine et la coenzyme Q10) chez les hommes hypofertiles. Elle a constaté que les antioxydants pourraient améliorer les taux de naissance vivante et de grossesse clinique par rapport au placebo ou à l'absence de traitement, mais a évalué la certitude des données comme faible à très faible car les essais étaient peu nombreux, petits, hétérogènes, à risque élevé de biais et rapportés de façon incohérente, avec de larges intervalles de confiance. Les auteurs de la revue ont appelé à des essais vastes et bien menés avant que les antioxydants puissent être recommandés, et ont noté que les effets indésirables étaient mal rapportés. Le message à retenir est un signal faible et incertain, pas un bénéfice établi.
Si un homme souhaite essayer un antioxydant, c'est peu coûteux et à faible risque, mais cela doit être compris comme une option faible et incertaine, non comme un substitut à l'arrêt du tabac, à l'évitement de la chaleur, ou à une évaluation appropriée d'un facteur masculin.
The study · 1
de Ligny 2022, Cochrane Database Syst Rev · Cochrane Database Syst Rev
Les antioxydants pour les femmes n'ont montré aucun bénéfice clair pour la naissance vivante
Pour les femmes, il n'a pas été démontré que les compléments antioxydants améliorent la chance de naissance vivante ou de grossesse. Les données sont de faible qualité, c'est donc incertain, mais il n'y a pas de bénéfice clair à signaler.
Une revue Cochrane de 2020 sur les antioxydants pour les femmes hypofertiles a regroupé des essais d'agents incluant la vitamine E, la vitamine C, l'acide folique, le myo-inositol, la mélatonine et la N-acétylcystéine. Elle a rapporté une possible augmentation de faible certitude des naissances vivantes et de la grossesse clinique (un signal depuis affaibli par la rétractation de sept essais inclus), et non des preuves claires d'une différence dans les taux de naissance vivante ou de grossesse clinique pour les antioxydants en général par rapport au placebo, aux soins standards ou à un autre antioxydant, et a évalué les données comme de faible à très faible certitude en raison d'un mauvais rapport, d'une imprécision et d'un risque de biais. Les auteurs de la revue ont conclu qu'il n'y avait pas suffisamment de preuves pour recommander un antioxydant spécifique. Ce résultat plaide contre le recours à des compléments de fertilité généraux pour les femmes, tout en laissant les agents spécifiques pour des affections définies à l'appréciation d'un clinicien.
Les compléments antioxydants généraux pour la fertilité ne constituent pas une voie fiable pour concevoir chez les femmes ; des compléments spécifiques pour une affection définie, comme l'acide folique avant la grossesse ou des agents dans le SOPK, sont une question distincte à discuter avec un clinicien.
The study · 1
Showell 2020, Cochrane Database Syst Rev · Cochrane Database Syst Rev
Measurement And Diagnosis
Infertility rises with age, from about 8% of couples at 19 to 26 to about 18% at 35 to 39
The chance of conceiving in any given cycle drops as you get older, and it drops for both partners. Measured as the share of couples who stay infertile, it climbs from about 8% in the twenties to about 18% by the late thirties, with a smaller decline on the male side too.
In a study of 782 couples using natural family planning across seven European centers, with intercourse timed to the fertile window, the share of couples who remained infertile rose with the age of both partners: from about 8% at ages 19 to 26 to about 13 to 14% at 27 to 34 and about 18% at 35 to 39. An independent rise was linked to male partners aged 35 and over, climbing from about 18% to 28% between 35 and 40. Because intercourse timing was accounted for, the decline reflects biology, not less frequent sex. It is population data: many older individuals conceive readily, and it describes averages, not any one person.
Who this may not transfer to:The decline was measured in both female and male partners within the same couples, so it applies to both sexes, not one.
The study · 1
Dunson 2004, Obstet Gynecol · Obstet Gynecol
Male factor contributes to about half of couples who struggle
About half the time a couple struggles, there is something on the male side, on its own or together with a female factor. That is why a semen analysis belongs early in the workup, not after the woman has been fully investigated.
A 2021 Lancet seminar synthesizing the field states that male factors contribute to about half of all cases of couple infertility and are the sole cause in a substantial share. Semen analysis, assessing sperm concentration, motility and morphology against reference values, is the foundation of the male evaluation, with hormonal, genetic and imaging tests added when it is abnormal. Many male causes are treatable or bypassable with assisted reproduction, and some, such as smoking, heat and a varicocele, are modifiable. The clinical point is that evaluating both partners from the outset avoids the common error of working up the woman alone.
The study · 1
Agarwal 2021, Lancet · Lancet
La plupart des couples conçoivent dans l'année d'essais bien planifiés, 92 % en douze cycles
Avec des rapports sexuels réguliers et bien planifiés, la plupart des couples conçoivent dans l'année : environ 68 % en trois cycles, 81 % en six et 92 % en douze. C'est pourquoi un an d'essai, ou six mois passé trente-cinq ans, est le moment habituel pour chercher de l'aide, et c'est une vraie raison d'espoir au début.
Une étude prospective allemande a suivi 346 femmes qui utilisaient la planification familiale naturelle pour planifier les rapports sexuels dès leur tout premier cycle d'essai. La probabilité cumulative de conception a atteint 38 % après un cycle, 68 % après trois, 81 % après six et 92 % après douze, et 36 femmes (10.4 %) n'avaient pas conçu dans le cadre de l'étude. Les auteurs ont interprété cela comme la plupart des couples concevant dans environ six cycles bien planifiés, avec environ la moitié de ceux qui essaient encore au-delà d'un an étant hypofécondes ou infertiles, ce qui fait de douze mois, ou six mois passé trente-cinq ans, un moment sensé pour être évalué plutôt que de continuer à attendre. Parce que ces couples planifiaient délibérément leurs rapports, la courbe décrit un cas presque optimal de fertilité naturelle, pas le couple moyen.
Who this may not transfer to:Conception is a couple outcome recorded through the women in the cohort, so it reflects both partners, not the female side alone.
Si vous avez des rapports sexuels réguliers et bien planifiés, les probabilités annuelles sont en votre faveur au début ; considérer le seuil de douze mois, ou six mois si la femme a plus de trente-cinq ans, comme le moment de chercher une évaluation, pas une raison de s'inquiéter plus tôt.
The study · 1
Gnoth 2003, Hum Reprod · Hum Reprod
Mood & stress
Emotional distress did not lower the chance of treatment success
Being anxious or low before fertility treatment does not make it fail. This matters because it lifts the unfair blame from women who are told they are not relaxed enough, while making clear the distress itself is real and deserves support.
A 2011 meta-analysis in the BMJ pooled 14 prospective studies (3583 women) measuring emotional distress before a cycle of assisted reproduction. Pre-treatment anxiety and depression were not associated with the chance of becoming pregnant (for example, no significant difference in distress between women who did and did not conceive). The authors concluded that emotional distress does not compromise the chance of ART success, which counters the common and harmful message that women simply need to relax. The distress of infertility and its treatment is nonetheless common and real, and deserves support in its own right, not as a means to an end.
The finding removes the blame in just relax, and it does not mean feelings do not matter: support for the strain of trying to conceive is worth seeking for your own wellbeing, independent of any effect on the odds.
The study · 1
Boivin 2011, BMJ · BMJ
What Does Not Help, and What To Stop Blaming
Acupuncture during IVF can calm the nerves. In the largest, most rigorous trial, 848 women undergoing IVF had live births at 18.3% with real acupuncture versus 17.8% with a sham needle (Smith, JAMA 2018). The calm is worth having; it did not change the live-birth rate.
Endometrial scratching, a procedure that scratches the womb lining before a cycle, made no difference. In a large trial, live births were 26.1% in both the scratched and the unscratched groups. It is one example of a wider pattern: for many IVF add-ons the randomized evidence is limited or absent.
General antioxidant supplements for women have not been shown to improve live birth. The large review that supported them has since had several of its trials retracted, so no clear benefit remains (Showell, 2020).
For couples who blame themselves, the evidence is a relief. Pooled across 14 studies of 3,583 women, emotional distress before a cycle did not lower the chance of becoming pregnant (Boivin, BMJ 2011). The "just relax" message people hear is unfair, and distress deserves care for its own sake.
The "just relax" advice is not only unkind but wrong: worry is not what keeps a cycle from working.
Women who smoke have about 60% higher odds of trouble conceiving, and take longer. Smoking also lowers sperm quality, so stopping helps both sides. Heavier drinking, around 14 or more drinks a week, is linked with taking longer to conceive; lighter intake shows no clear effect. Many people choose to avoid alcohol once actively trying, given the uncertainty in early pregnancy.
How It Works
Each cycle, the ovary releases one mature egg that survives about 24 hours. Sperm can live several days in the tract. The fertile days run from a few days before ovulation to the day the egg is released. Conception can fail at several points. Ovulation may be absent or irregular, as in PCOS. The tubes may be blocked or damaged, as above. The sperm may be too few or move too poorly. A standard workup checks ovulation, the tubes, and a semen analysis together.
Age is the one factor no treatment fully reverses. A woman is born with all the eggs she will have, and both their number and quality fall over time: gradually through the 20s and early 30s, then faster. That raises the chance of a cycle with no viable egg and of an early miscarriage. On the male side the decline in sperm quality is smaller and slower. These are averages: fertility varies widely between people of the same age, and many older couples conceive without difficulty.
Go Deeper
- Male fertility, the semen analysis, varicocele, and what improves sperm count and movement.
- Polycystic ovary syndrome, the most common cause of absent ovulation, and how it is treated.
- Endometriosis, how it can block the tubes and lower the odds of conceiving.
- Perimenopause, what falling egg number and quality mean as the mid-30s pass.
The Chinese Medicine View
The Chinese Medicine View
Chinese medicine has been used for fertility for centuries; it is a central classical domain. It reads conception through the Kidneys. They store the essence (Jing) that governs reproduction, slowly spent across a life. It also weighs the balance of Kidney Yang and Kidney Yin. The Chong and Ren, two extraordinary vessels, fill the uterus and govern the cycle. The Liver moves the Qi and stores the Blood that nourishes the lining. A practitioner reads these patterns from the pulse and tongue signs a written description cannot capture. The tradition is long-standing evidence of what has helped people. The trials are narrower: the acupuncture results above showed no gain over a sham needle, and the Chinese-herbal-medicine evidence is emerging and low-quality. A long tradition does not guarantee a real effect. Use Chinese medicine as support alongside a full medical workup and, where needed, assisted reproduction.
A cold, depleted picture: low back and knee weakness, cold limbs, low libido, a long cycle, and scanty flow. The direction is to warm and supplement Kidney Yang, the reading behind formulas in the Er Xian Tang and You Gui family.
Depletion on the cooling, substantial side: night sweats, dryness, dizziness, a short or scanty cycle, and the diminishing reserve that Chinese medicine links to age. The direction is to nourish Yin and replenish essence.
Being wound tight under pressure: irritability, breast and rib-side fullness before the period, and cycles that vary. The direction is to soothe the Liver and move the Qi, the ground the Xiao Yao San family is built on.
Too little Blood to build a rich lining: a scanty, pale flow, dizziness, pallor, and fatigue. The direction is to tonify Blood and Qi so the uterus is nourished across the cycle.
Common in the polycystic picture: weight that gathers, tiredness after eating, a heavy sluggish feeling, irregular or absent ovulation, and a swollen tongue with a greasy coat. The direction is to strengthen the Spleen and transform Phlegm-Damp.
Cautions
Extra restraintEverything to be aware of is here, in one place. This practice suits most healthy people; a few situations call for real care.
Le tabagisme a augmenté les probabilités d'infertilité d'environ 60 %
Une revue systématique et méta-analyse a regroupé des études observationnelles sur le tabagisme et la fertilité féminine. Les probabilités d'infertilité étaient significativement plus élevées chez les fumeuses que chez les non-fumeuses (OR 1.60, IC à 95 % de 1.34 à 1.91), et les fumeuses mettaient plus de temps à concevoir, avec une proportion plus élevée de conception retardée au-delà d'un an. Les données sont observationnelles, une confusion résiduelle ne peut donc pas être exclue, mais l'association est cohérente et biologiquement plausible, et le tabagisme est un préjudice réversible. Le tabagisme diminue également la concentration et la qualité du sperme chez les hommes, de sorte que l'argument en faveur de l'arrêt s'applique aux deux partenaires.Augood 1998, Hum Reprod
Consulter après douze mois, ou six mois passé trente-cinq ans
Un avis du comité de l'American College of Obstetricians and Gynecologists et de l'American Society for Reproductive Medicine précise que la fertilité féminine décline avec l'âge, progressivement jusqu'au début de la trentaine et plus rapidement ensuite, et recommande une évaluation et un traitement plus précoces : après 12 mois d'essai pour les femmes de moins de 35 ans, mais après 6 mois pour les femmes âgées de 35 ans et plus, et une évaluation immédiate en cas de facteur de risque connu tel que des cycles irréguliers ou absents, des antécédents de maladie pelvienne ou un facteur masculin suspecté. L'objectif est d'éviter de perdre du temps qui ne peut pas être récupéré, afin que davantage d'options restent disponibles.ACOG/ASRM Committee Opinion 589, 2014, Fertil Steril
Quatorze verres ou plus par semaine réduisaient la chance mensuelle de concevoir
Une cohorte prospective de 6120 femmes danoises essayant de concevoir, suivies avec des données de cycle menstruel, a constaté une fécondabilité réduite chez celles consommant 14 verres d'alcool ou plus par semaine (rapport de fécondabilité 0.82, IC à 95 % de 0.60 à 1.12), sans réduction claire entre les catégories d'apport faible à modéré en dessous de ce seuil. L'estimation pour l'apport élevé était imprécise car relativement peu de femmes buvaient autant. La lecture pratique est qu'une consommation importante d'alcool mérite d'être réduite lorsqu'on essaie de concevoir, tandis qu'un verre occasionnel n'a pas montré d'importance ; de nombreux cliniciens conseillent néanmoins d'éviter l'alcool une fois qu'on essaie activement, compte tenu de l'incertitude en début de grossesse.Mikkelsen 2016, BMJ
Do not let time slip when age is pressing
Age is the factor that presses here, for the reason given above, so do not let time slip. If the woman is past the evaluation threshold and you have been trying, or cycles are irregular or a problem is known, book an evaluation now.
Read fertility supplements for what they are
General fertility supplements and antioxidant blends carry weak outcome evidence. They are no substitute for a semen analysis, treating a specific cause, or stopping smoking. Folic acid before conception is the one supplement that is standard care.
Chinese herbs during treatment and pregnancy
Use Chinese herbal medicine only with a qualified practitioner who has assessed your pattern. Tell them you are trying to conceive or may be pregnant: some herbs are unsafe in pregnancy and some interact with fertility medications. Source herbs from regulated suppliers who test their material, and keep your fertility clinician informed of anything you take.
IVF add-ons vary in what backs them
IVF add-ons vary widely in the evidence behind them, and for many of them it is limited or absent.
Consult a licensed clinician for an evaluation matched to your age and history, and promptly if any of the signs below fit you.
When to See Someone
These are the signs to bring to a doctor or fertility specialist, and some are a reason to seek evaluation sooner:
- A year of regular, unprotected sex without a pregnancy. This is the usual point to seek evaluation.
- Being over thirty-five and having tried for more than six months, or over forty and trying at all. Fertility falls with age, so evaluation is advised sooner than for younger couples.
- No periods, or cycles that are very irregular, very long, or very short. This usually points to an ovulation problem: common, often treatable, and worth assessing early.
- Known or suspected tubal or pelvic disease: a past pelvic infection, pelvic surgery, an ectopic pregnancy, or severe endometriosis. These can block the tubes; check early.
- A very abnormal semen analysis, or a known problem on the male side such as an undescended testicle, prior chemotherapy or radiotherapy, or a testicular injury. A male factor is common, so the workup covers both partners.
- The emotional toll of trying: persistent low mood, anxiety, or strain that is hard to carry, and urgently any thoughts of harming yourself. This is common and treatable, support is available, and reaching for it is a strength.(seek urgent care)
None of this is meant to take away hope. Many couples conceive with time, with timing, or with the right treatment matched to the cause. For age and the treatable blocks especially, acting sooner keeps the most options open.
Common Questions
How long should it take to conceive?
With well-timed trying, most couples conceive within a year. About 38% conceive in the first cycle, 68% by three cycles, 81% by six, and 92% by 12 (Gnoth, Human Reproduction 2003).
Is it the man or the woman?
Roughly a third of cases trace mainly to the woman, a third mainly to the man, and the rest to both partners or to no cause any test can find. Because a male factor is so common, a semen analysis belongs in the first round of tests, not months later (Agarwal, Lancet 2021).
How do we find the fertile window?
The fertile window is the six days ending on the day of ovulation, and the best odds fall in the two or three days just before it. You can pinpoint it three ways: counting from your cycle length, using an ovulation kit, or watching for the change in cervical mucus.
Do we need to lose weight before treatment?
Not as a required first step. Modest weight loss can restart ovulation when extra weight is stopping it. But requiring a six-month weight-loss program before fertility treatment did not raise the birth rate: 27.1% versus 35.2% with prompt treatment (Mutsaerts, NEJM 2016). The delay it added largely explains the gap.
Can Chinese herbs help us conceive?
Pooled studies link Chinese herbal medicine with higher pregnancy rates. But the trials are small and low in quality, so the real effect is probably much smaller than the pooled numbers suggest. Use it with a qualified practitioner as part of a full workup.
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Thomas Dehli, Founder & Editor, Sacred Lotus
Sacred Lotus has published Chinese medicine reference material since 2001. Integrative pages are held to the same standard as the herb and formula library: cite the source, grade the claim at its real strength, and say where the research has not looked. This page is educational and it is not medical advice. Last reviewed and updated August 9, 2026.
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