PCOS and fertility: what actually helps you conceive
PCOS is a common cause of difficulty conceiving and one of the more treatable ones. Ovulation induction, timing and when to seek help.
Being told you have while trying to conceive lands hard. It is worth knowing early that this is one of the more treatable causes of difficulty conceiving.
In short: PCOS affects fertility by disrupting ovulation rather than by damaging the ovaries. Many women conceive naturally. Where they do not, ovulation induction with letrozole or clomifene is effective for a substantial proportion, and IVF is available where it is not.
Why conception is harder
The follicles are there. What is inconsistent is the final step: one follicle maturing and releasing an egg. Irregular ovulation means fewer opportunities per year and less predictable timing, which compounds the difficulty.
Confirming whether you ovulate
Options include cycle tracking apps combined with a mid-luteal blood test, ovulation predictor kits - which can be less reliable in PCOS because of raised baseline LH - and basal body temperature tracking. A clinician can advise which is worth your effort given your cycle length.
Ovulation induction
Letrozole is now widely used first-line for ovulation induction in PCOS and has good evidence for live birth rates compared with clomifene.
Clomifene remains in use and is effective for many women.
Both are prescribed with monitoring. Multiple pregnancy risk is a genuine consideration and part of why monitoring matters.
Metformin may be added where is significant.
Ovarian drilling is a surgical option used less often now, but still relevant in specific cases.
IVF is offered where ovulation induction does not succeed. Women with PCOS need careful protocols because of a higher risk of ovarian hyperstimulation syndrome.
What you can influence
Modest weight loss where BMI is raised improves ovulation rates. Insulin sensitivity work - resistance training, protein and fibre, sleep - supports the same outcome. Alcohol reduction and smoking cessation matter. None of this guarantees conception, and none of it is your fault if it does not work.
When to seek help
- After twelve months of trying, or six months if you are over 35
- Sooner if your cycles are very long or absent, because you may be ovulating rarely or not at all
- Sooner if you have other risk factors, such as previous pelvic surgery
Contraception still matters
Irregular ovulation is not no ovulation. If pregnancy is not the aim, contraception is still needed.
Common questions
Does PCOS mean I will need IVF? No. Many women conceive naturally or with ovulation induction.
Does PCOS increase miscarriage risk? Some evidence suggests a modestly increased risk; it is worth discussing with your clinician.
Does PCOS affect pregnancy? It is associated with higher rates of gestational diabetes, so is usually offered.
Read the full PCOS guide or the cycle and fertility hub.