PCOS and Getting Pregnant Naturally: What Helps

How does PCOS affect ovulation and fertility?

Polycystic ovary syndrome is one of the most common hormonal conditions in women of reproductive age. Its defining feature for fertility is irregular or absent ovulation (anovulation). Without ovulation, an egg is not released, and pregnancy cannot occur that cycle.

PCOS also involves insulin resistance in many women, elevated androgens (male hormones), and altered LH/FSH ratios — all of which disrupt the hormonal signals that coordinate follicle development and ovulation.

Importantly, women with PCOS still have follicles — often more than typical — but those follicles do not progress through the normal maturation cycle reliably. This means that when ovulation is restored, whether naturally or with treatment, pregnancy is entirely possible [1, 2].

What lifestyle changes most support natural conception with PCOS?

Evidence consistently supports lifestyle modification as a first step for women with PCOS who are overweight and trying to conceive [2, 3].

Weight and nutrition: even modest weight loss — in the range of 5 to 10 percent of body weight — can restore ovulation in women with PCOS who are above a healthy weight. This appears to work by improving insulin sensitivity, which in turn reduces androgen production and normalizes the hormonal environment needed for ovulation.

A diet that moderates refined carbohydrates and supports steady blood sugar levels is consistent with guidelines, though no single diet is prescribed 2Ref 2Teede HJ, Tay CT, Laven JJE, Dokras A, et al. (2023).Recommendations From the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome.International evidence-based recommendations for lifestyle modification, ovulation induction (letrozole, clomiphene, metformin, gonadotropins, surgery), and management in PCOS.

Physical activity: regular moderate exercise supports insulin sensitivity and is recommended as part of lifestyle management for PCOS — independently of weight loss 2Ref 2Teede HJ, Tay CT, Laven JJE, Dokras A, et al. (2023).Recommendations From the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome.International evidence-based recommendations for lifestyle modification, ovulation induction (letrozole, clomiphene, metformin, gonadotropins, surgery), and management in PCOS.

Timing intercourse: because ovulation is irregular, tracking it can help. Ovulation predictor kits (LH surge tests) are helpful when ovulation is occurring but unpredictable. When cycles are very irregular or absent, tracking alone may not be sufficient.

Avoiding smoking: smoking is associated with worse fertility outcomes across many conditions and is worth addressing regardless of PCOS.

When is medical treatment considered?

If lifestyle changes do not restore regular ovulation within a few months — or if you are not overweight to begin with — medical treatment to induce ovulation is the next step. Guidelines support several approaches [2, 3]:

Letrozole: an aromatase inhibitor originally developed for breast cancer treatment that is now recommended as first-line ovulation induction in PCOS. A landmark randomized trial showed letrozole produces higher live birth rates in women with PCOS than clomiphene 4Ref 4Legro RS, Brzyski RG, Diamond MP, Coutifaris C, Schlaff WD, Casson P, Christman GM, Huang H, Yan Q, Alvero R, Haisenleder DJ, Barnhart KT, Bates GW, Usadi R, Lucidi S, Baker V, Trussell JC, Krawetz SA, Snyder P, Ohl D, Santoro N, Eisenberg E, Zhang H (2014).Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.Randomized controlled trial demonstrating letrozole produces higher live birth rates than clomiphene for ovulation induction in PCOS.

Clomiphene citrate: a long-established oral medication that also stimulates ovulation. It remains in use, though letrozole has generally been preferred in updated guidelines.

Metformin: an insulin-sensitizing medication sometimes used alongside ovulation-induction drugs, particularly in women with marked insulin resistance or abnormal glucose metabolism. It is not a first-line treatment for ovulation induction on its own.

Gonadotropins: injectable FSH can induce ovulation when oral medications are not effective, but requires careful monitoring to avoid multiple pregnancies.

Surgery: laparoscopic ovarian drilling — a procedure that punctures multiple follicles on the ovary — can restore ovulation and is an option for women who do not respond to medications, though it is less commonly used today 2Ref 2Teede HJ, Tay CT, Laven JJE, Dokras A, et al. (2023).Recommendations From the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome.International evidence-based recommendations for lifestyle modification, ovulation induction (letrozole, clomiphene, metformin, gonadotropins, surgery), and management in PCOS.

Does PCOS affect pregnancy after conception?

Once pregnant, women with PCOS have somewhat higher rates of gestational diabetes and pregnancy-induced hypertension compared to women without PCOS. Prenatal care teams are aware of these risks and screen for them.

Miscarriage rates may also be modestly elevated in PCOS, particularly in association with insulin resistance — though this remains an area of ongoing research. Weight management and good glycemic control before and during pregnancy may help 1Ref 1Rotterdam ESHRE/ASRM-Sponsored PCOS Consensus Workshop Group (2004).Revised 2003 consensus on diagnostic criteria and long-term health risks related to polycystic ovary syndrome (PCOS).Diagnostic criteria for PCOS and foundational description of the hormonal disruptions that cause anovulation and fertility challenges.

How long should I try before seeing a specialist?

The standard guideline for seeking fertility evaluation is one year of unprotected intercourse for women under 35, or six months for those 35 and older. However, if you know you have PCOS and irregular periods, most specialists recommend seeking evaluation earlier — because the problem is defined and treatable sooner rather than later.

A reproductive endocrinologist or gynecologist familiar with PCOS is the right specialist. Gale can help you prepare for that visit and think through your questions.