Getting pregnant with PCOS: what helps, step by step.

If you have PCOS and want to conceive, the core challenge is usually ovulation. Without regular ovulation there are fewer chances each year to conceive, and it’s harder to time intercourse. The good news: ovulation is something medicine is genuinely good at restoring.

How PCOS affects fertility

In PCOS, follicles start developing but often stall before one becomes dominant and releases an egg. Higher androgens and insulin contribute to that stall. Cycles become long or unpredictable, and some months there’s no ovulation at all. People with PCOS often have a good number of eggs — AMH is typically high — which is one reason treatment tends to work well.

Step 1: Know if and when you ovulate

• Track cycle length. Our cycle & ovulation calculator estimates a window, but with irregular cycles estimates are fuzzy — use it as a starting point.
• Ovulation predictor kits (LH strips) can be less reliable in PCOS, because baseline LH is often elevated and can trigger false positives. Combining them with other signs helps.
• Basal body temperature confirms ovulation after the fact with a sustained rise.
• Mid-luteal progesterone blood test — the clinical way to confirm ovulation happened.

More on cycle patterns in PCOS and irregular periods.

Step 2: Preconception health

The international guideline recommends preconception attention to weight, blood pressure, smoking, alcohol, diet, exercise, sleep and mental health, plus folic acid supplementation. Screening for blood-sugar problems before pregnancy is also recommended because gestational diabetes is more common in PCOS.

For people with excess weight, a 5–10% loss can restore ovulation in some. That said, guidelines caution against delaying effective fertility treatment for long periods to pursue weight loss, especially as age advances. See PCOS weight loss.

Step 3: Medical treatment to induce ovulation

Letrozole (first line)

Letrozole lowers estrogen briefly, prompting the brain to release more FSH and stimulate a follicle. In a large NIH-funded trial of 750 women with PCOS published in the New England Journal of Medicine, letrozole produced more live births than clomiphene (27.5% vs 19.1%) and a higher ovulation rate. The 2023 guideline now recommends letrozole as the first-line pharmacological treatment for ovulation induction in PCOS. Its use in fertility is off-label in many countries, which is normal practice under specialist care.

Clomiphene and metformin

Clomiphene is an alternative, and metformin can be used alone or combined with clomiphene in some cases. A Cochrane review found metformin may improve live-birth rates compared with placebo, with more gastrointestinal side effects.

Gonadotropins, ovarian drilling and IVF

If oral medicines don’t work, options include injectable gonadotropins with careful monitoring (to limit multiple pregnancy), laparoscopic ovarian surgery in selected cases, and IVF. People with PCOS are at higher risk of ovarian hyperstimulation syndrome during IVF, which specialist protocols are designed to reduce.

What about inositol or “natural” fertility boosters?

D-chiro-inositol showed possible ovulation benefits in the guideline review, but evidence is limited — see inositol for PCOS. Supplements shouldn’t delay evaluation or proven treatment, and everything you take should be reviewed for pregnancy safety.

Medications to review before trying

• GLP-1 receptor agonists: the semaglutide (Wegovy) prescribing information advises stopping at least two months before a planned pregnancy. See GLP-1s and PCOS.
• Spironolactone and other anti-androgens: not safe in pregnancy; they’re prescribed with reliable contraception.
• Supplements such as berberine: avoid in pregnancy.

PCOS and pregnancy

The guideline describes PCOS as a high-risk status in pregnancy, with higher rates of gestational diabetes, hypertensive disorders and preterm birth. That doesn’t mean something will go wrong — it means you deserve early glucose screening and attentive antenatal care. Mention your PCOS at your first prenatal visit.

Timing intercourse with irregular cycles

With unpredictable ovulation, targeting a single “fertile day” is stressful and unreliable. Many fertility specialists suggest regular intercourse every two to three days throughout the cycle, which covers the fertile window without needing to pinpoint it. Sperm can survive several days in the reproductive tract, so the days before ovulation matter most.

Don’t forget the other half of the picture

Around a third of infertility involves male factors. If you have a partner with sperm, a semen analysis early in the process is simple and avoids months of treating only one side. General preconception health — not smoking, limiting alcohol, a healthy weight and diet — applies to both partners.

Miscarriage and PCOS

Some studies report higher miscarriage rates in PCOS, but much of the difference appears linked to factors such as weight, insulin resistance and age rather than PCOS itself, and research is mixed. If you’ve experienced pregnancy loss, you deserve support and a conversation with your clinician about whether further evaluation is warranted. Optimising glucose before pregnancy is one evidence-supported step.

Looking after yourself through it

Fertility treatment is emotionally demanding, and people with PCOS already have higher rates of anxiety and depression. Counselling, peer support, and setting boundaries around how much you track and read are all legitimate parts of care. See PCOS, anxiety and depression.