PCOS and Fertility: How to Get Pregnant with Polycystic Ovary Syndrome

PCOS and fertility are deeply intertwined for millions of women worldwide. Polycystic ovary syndrome (PCOS) is one of the most common hormonal disorders affecting women of reproductive age, and it's also the leading cause of anovulatory infertility — infertility caused by not ovulating regularly. But here's the important truth that many women with PCOS don't hear often enough: PCOS doesn't mean you can't get pregnant. With the right approach, most women with PCOS can conceive — either naturally or with medical assistance. This comprehensive guide explains what PCOS does to your fertility, and — more importantly — what you can do about it.

What Is PCOS? Understanding the Condition

Polycystic ovary syndrome is a complex hormonal disorder characterised by a combination of features that vary from woman to woman. Despite its name, you don't need to have polycystic ovaries (multiple small follicles on the ovaries) to be diagnosed with PCOS — diagnosis is based on the presence of at least two of three criteria (the Rotterdam criteria):

1. Irregular or absent ovulation (oligo- or anovulation)
2. Clinical or biochemical signs of excess androgens (hyperandrogenism) — including symptoms like excess facial/body hair (hirsutism), acne, or elevated testosterone on blood tests
3. Polycystic ovaries on ultrasound — ovaries containing 12 or more follicles measuring 2–9mm, or increased ovarian volume

PCOS affects an estimated 8–13% of women of reproductive age globally, making it the most common endocrine disorder in this population. Despite its prevalence, it remains chronically underdiagnosed — many women live with PCOS symptoms for years before receiving an accurate diagnosis.

How PCOS Affects Fertility: The Core Mechanisms

Understanding how PCOS and fertility interact requires understanding what goes wrong in the PCOS hormonal system:

Anovulation and Irregular Ovulation

The primary fertility challenge in PCOS is irregular or absent ovulation. In a normal cycle, a follicle matures and releases an egg (ovulation) approximately once per month, creating a predictable fertile window. In PCOS, hormonal imbalances disrupt this process:

• Elevated LH (luteinising hormone) relative to FSH (follicle-stimulating hormone) prevents follicles from maturing to the point of ovulation
• Excess androgens (testosterone and its precursors) interfere with follicle development
• Insulin resistance, present in 65–80% of women with PCOS, amplifies androgen production by the ovaries

The result is that follicles begin developing but stall — accumulating on the ovary as the "cysts" (actually small undeveloped follicles) that give PCOS its name. Meanwhile, ovulation may occur only a few times per year — or not at all — making natural conception significantly more challenging than for women who ovulate regularly.

Insulin Resistance and Metabolic Factors

The role of insulin resistance in PCOS fertility is profound and complex. Excess insulin directly stimulates the ovaries to produce more androgens, further disrupting ovulation. Insulin resistance also affects the quality of the uterine lining (endometrium) and may impair embryo implantation.

Importantly, addressing insulin resistance — through diet, exercise, and sometimes medication — is one of the most effective ways to restore ovulation in women with PCOS.

Egg Quality Considerations

Women with PCOS tend to have more eggs (higher antral follicle count and higher AMH), but this doesn't necessarily mean better fertility — egg quality can be affected by the hormonal environment created by PCOS. Research suggests that the oxidative stress associated with PCOS may compromise egg quality, though this varies significantly between individuals.

Diagnosing PCOS: What Tests to Expect

If you suspect you have PCOS — particularly if you have irregular periods, excess hair growth, acne, or difficulty conceiving — the following tests help establish a diagnosis and understand your specific hormonal profile:

• Blood tests: FSH, LH, oestradiol, testosterone (total and free), DHEAS, SHBG, AMH, fasting insulin and glucose, HbA1c, thyroid function, prolactin
• Pelvic ultrasound: To assess ovarian morphology and count antral follicles
• BMI and waist circumference: Metabolic risk assessment

Understanding your specific PCOS subtype — lean PCOS, insulin-resistant PCOS, adrenal PCOS, or inflammatory PCOS — helps guide the most effective treatment approach for fertility.

Natural Approaches to Improving PCOS Fertility

Before or alongside medical treatments, natural interventions can significantly improve PCOS and fertility outcomes. Many women with mild PCOS respond well to lifestyle changes alone.

Diet Modifications

Diet is arguably the most powerful modifiable factor in PCOS management. Recommendations consistently supported by research include:

• Low glycaemic index (GI) diet: Choosing low-GI carbohydrates (oats, legumes, non-starchy vegetables, most fruits) over high-GI foods (white bread, sugary drinks, processed foods) reduces insulin spikes and improves insulin sensitivity
• Anti-inflammatory foods: PCOS is associated with chronic low-grade inflammation. An anti-inflammatory diet rich in colourful vegetables, omega-3 fatty acids, and whole foods can reduce inflammation markers
• Adequate protein: Protein at each meal helps stabilise blood sugar and reduce insulin surges
• Limit refined carbohydrates and added sugars: These drive insulin spikes that worsen PCOS symptoms
• Mediterranean-style eating: Multiple studies have shown improvements in PCOS metabolic parameters on a Mediterranean diet

Exercise for PCOS Fertility

Exercise is one of the most evidence-based interventions for improving insulin sensitivity and restoring ovulation in PCOS. Research recommends:

• 150 minutes of moderate cardio per week (brisk walking, cycling, swimming) — shown to improve insulin sensitivity and reduce androgen levels
• Resistance/strength training 2–3 times per week — builds muscle mass, which improves glucose metabolism and insulin sensitivity
• Even modest weight loss (5–10% of body weight) in women with overweight PCOS can restore ovulation in up to 80% of cases

Stress Reduction

Chronic stress elevates cortisol, which can worsen insulin resistance and disrupt the hypothalamic-pituitary-ovarian axis — the hormonal cascade that controls ovulation. Stress management practices including yoga, mindfulness meditation, adequate sleep, and reducing work-related stress are beneficial for PCOS fertility.

Supplements for PCOS Fertility

Several supplements have strong evidence for improving fertility in women with PCOS:

Myo-Inositol (and D-Chiro-Inositol)

This is the most evidence-backed supplement for PCOS and fertility. Multiple RCTs have shown that myo-inositol supplementation (2–4g/day) improves insulin sensitivity, restores regular ovulation in a significant proportion of women, reduces testosterone levels, and improves egg quality. The optimal MI:DCI ratio appears to be 40:1, as found in follicular fluid.

A 2015 meta-analysis found that myo-inositol reduced time to ovulation, increased ovulation rate, and improved pregnancy rates in women with PCOS — with effects comparable to metformin but a much better side effect profile.

N-Acetyl Cysteine (NAC)

NAC is an antioxidant precursor to glutathione. Several studies have shown it can improve insulin sensitivity, reduce androgen levels, and restore regular ovulation in PCOS — some showing outcomes comparable to metformin. Typical doses used in studies are 600mg 2–3 times daily.

Vitamin D

Vitamin D deficiency is extremely common in women with PCOS, and low vitamin D is independently associated with worsened insulin resistance, higher androgens, and irregular cycles. Supplementing vitamin D (1,000–2,000 IU/day, higher if severely deficient) has been shown to improve these parameters in women with PCOS.

Omega-3 Fatty Acids

Fish oil supplementation reduces triglycerides, improves insulin sensitivity, and reduces testosterone in women with PCOS. An analysis of 6 RCTs found significant improvements in fasting insulin, testosterone, and cycle regularity with omega-3 supplementation in PCOS.

Folate/Methylfolate

Non-negotiable for any woman trying to conceive, regardless of PCOS status. Given the higher rates of MTHFR variants in some populations, methylfolate (the active form) is often preferred over synthetic folic acid.

Medical Treatments for PCOS-Related Infertility

When lifestyle and supplement interventions aren't sufficient to restore ovulation and achieve conception, medical treatments are highly effective:

Letrozole: First-Line Ovulation Induction

Letrozole (an aromatase inhibitor) is now the recommended first-line medication for ovulation induction in women with PCOS, having surpassed clomiphene citrate (Clomid) in several head-to-head trials. A landmark multicentre RCT found letrozole resulted in significantly higher live birth rates than clomiphene in PCOS women (27.5% vs 19.1% per cycle).

Clomiphene Citrate (Clomid)

Clomiphene has been used for ovulation induction in PCOS for decades and remains effective, though slightly less so than letrozole in most studies. It works by blocking oestrogen receptors, tricking the brain into releasing more FSH to stimulate follicle development.

Metformin

A diabetes medication that improves insulin sensitivity. Often used alongside letrozole or clomiphene in PCOS — evidence shows the combination improves ovulation and pregnancy rates compared to either drug alone. May also be used alone in women with significant insulin resistance who prefer to avoid ovulation induction drugs initially.

Gonadotrophins

Injectable FSH (follicle-stimulating hormone) can stimulate ovulation when oral medications fail. Requires careful monitoring due to risk of ovarian hyperstimulation syndrome (OHSS) and multiple pregnancy.

Laparoscopic Ovarian Drilling (LOD)

A surgical procedure that destroys a small portion of ovarian tissue, reducing androgen production and often restoring regular ovulation. Used when medications fail and can provide a sustained improvement in cycle regularity.

IVF

For women who don't respond to ovulation induction medications, IVF with careful stimulation protocols (to minimise OHSS risk) offers high success rates. Women with PCOS generally have good responses to IVF stimulation due to their high antral follicle counts.

Frequently Asked Questions About PCOS and Fertility

Q: Can I get pregnant naturally with PCOS?

A: Yes — many women with PCOS conceive naturally, particularly those with mild symptoms, healthy weight, and only mildly irregular cycles. The key is identifying when you ovulate (using OPKs) and timing intercourse accordingly. Lifestyle optimisation and supplements can further improve natural conception chances.

Q: How long does it typically take to get pregnant with PCOS?

A: This varies significantly. Women with occasional ovulation may conceive within a few cycles; those with very infrequent or absent ovulation may need several months of lifestyle optimisation or medical intervention. Most women with PCOS who actively treat their condition and receive appropriate support achieve pregnancy within 12–18 months.

Q: Does losing weight really help PCOS fertility?

A: For overweight or obese women with PCOS, even modest weight loss (5–10% of body weight) can restore regular ovulation in up to 80% of cases, reduce androgen levels, and significantly improve conception rates. For women with a healthy BMI, weight loss is not the intervention — other approaches like inositol, diet quality, and stress management are more relevant.

Q: Is PCOS hereditary?

A: There is a strong genetic component to PCOS — if your mother or sister has PCOS, your risk is significantly higher. Multiple genes are implicated, but PCOS expression is also strongly influenced by environmental and lifestyle factors, meaning genetic predisposition doesn't guarantee severe symptoms.

Q: Can PCOS go away after pregnancy?

A: Pregnancy doesn't cure PCOS. However, many women find that symptoms improve postpartum, particularly if they breastfeed (which suppresses ovulation and androgens) and maintain healthy lifestyle habits. PCOS is a lifelong condition that benefits from ongoing management.

Q: Are miscarriage rates higher with PCOS?

A: Research does suggest slightly elevated miscarriage rates in women with PCOS, potentially linked to insulin resistance, elevated androgens affecting the endometrium, or egg quality issues. Optimising these factors before conception — through lifestyle, metformin, and supplements — may reduce miscarriage risk.

Q: What is the best diet to get pregnant with PCOS?

A: A low-GI, anti-inflammatory diet modelled on Mediterranean eating patterns has the best evidence. Focus on vegetables, legumes, whole grains, lean protein, healthy fats (olive oil, avocado, nuts), and oily fish. Reduce refined carbs, added sugars, and highly processed foods.

Q: Which fertility supplement is most important for PCOS?

A: Myo-inositol has the strongest evidence specifically for PCOS fertility — it addresses the core insulin resistance mechanism and has been shown in multiple RCTs to restore ovulation and improve pregnancy rates. Vitamin D and omega-3s are also important, particularly given their high deficiency rates in women with PCOS.

Conceive Plus Support for Women with PCOS

At Conceive Plus, we understand that PCOS and fertility is a journey that requires comprehensive support. Our fertility supplement range includes key nutrients that have been specifically researched in the context of PCOS — including myo-inositol, methylfolate, vitamin D, and antioxidants that support hormonal balance and egg quality.

Combined with the lifestyle strategies outlined in this guide, Conceive Plus supplements provide targeted nutritional support for the unique challenges that PCOS presents on the path to conception.

Conclusion: PCOS Is a Challenge, Not a Barrier

Living with PCOS and fertility challenges is not easy — the irregular cycles, the uncertainty, and the emotional toll of trying to conceive can feel overwhelming. But the evidence is clear: with the right interventions, the vast majority of women with PCOS can achieve pregnancy. The condition is highly responsive to lifestyle changes, targeted supplementation, and — when needed — safe and effective medical treatments.

You are not alone in this journey. Armed with the knowledge in this guide and the right professional support, the road to parenthood is absolutely achievable with PCOS.