Medically reviewed by Chandre Tina May, Registered Nurse & Menopause Society Certified Practitioner (MSCP). See our editorial policy.
You’ve been tracking your cycle for months. Some months there is no cycle at all. You’ve peed on more ovulation sticks than you can count, and sometimes the surge never comes, or it comes late, or it comes twice, and you still don’t know where you stand. If you have PCOS and you’re trying to conceive, the process can feel like trying to hit a target that keeps moving – and the advice you’ve been given (“just relax,” “try losing a few pounds”) has probably made you feel more alone, not less. You are not imagining how hard this is. And you are not alone: PCOS is one of the most common hormonal conditions in women of reproductive age, and it is one of the most treatable causes of ovulatory infertility. Getting pregnant with PCOS is genuinely possible – often without as much intervention as people fear.
What’s actually happening in your body – the garden metaphor
Think of your ovaries as a garden. Each month, several small follicles – tiny seed pods, each containing an egg – begin to grow. In a typical cycle, one follicle becomes dominant, ripens fully, and releases its egg at ovulation. The others quietly die back.
With PCOS, the garden gets the signal to start growing, but the ripening process stalls. Instead of one dominant follicle taking over, you end up with a collection of small, part-grown follicles that never quite make it to the point of releasing an egg. That’s the “polycystic” appearance on an ultrasound – not cysts in the traditional sense, but a cluster of follicles that didn’t finish what they started.
The reason the ripening stalls is largely hormonal. Elevated luteinising hormone (LH), higher-than-usual androgens (such as testosterone), and – in many but not all women with PCOS – insulin resistance all interfere with the finely timed hormonal signals that trigger ovulation. No ovulation means no egg available to be fertilised. That’s why irregular or absent periods are the central fertility challenge with PCOS, rather than egg quality or fallopian tube problems.
The good news buried in all of this: the eggs are there. The garden is full of potential. What’s missing is the right conditions to let things ripen – and that’s something medicine, and sometimes lifestyle, can genuinely influence.
Why ovulation tracking is unreliable when you have PCOS
Standard ovulation predictor kits (OPKs) detect a surge in LH. The problem is that many women with PCOS already have chronically elevated LH – so the kits can show a false positive, or multiple surges, without ovulation actually occurring. Basal body temperature (BBT) charting can help confirm ovulation after the fact, but if your cycles are long and irregular, the data gets hard to interpret.
This doesn’t mean tracking is useless. It means pairing OPKs with BBT, and ideally with a progesterone blood test on around day 21 (or 7 days after a suspected ovulation), gives a much clearer picture. A raised progesterone level is the most reliable sign that ovulation actually happened. Ask your GP for this test – it’s simple and inexpensive, and it can save months of guesswork. You can also learn more about how PCOS affects your cycle and what irregular periods really mean.
What makes getting pregnant with PCOS harder – and what doesn’t
It’s worth separating the real barriers from the myths, because some things you’ve probably been told matter more than they do.
Real barriers
- Infrequent ovulation. Fewer ovulations per year means fewer chances to conceive. This is the main issue.
- Insulin resistance. Present in many (though not all) women with PCOS, insulin resistance can worsen the hormonal imbalance that disrupts ovulation. Addressing it – whether through diet, exercise, or medication – can improve ovulatory frequency.
- Elevated androgens. High testosterone and related androgens can interfere with follicle development and egg maturation.
Things that are often overstated
- Weight. While research shows that modest weight loss can restore ovulation in some women with PCOS who also have a higher BMI, many women with PCOS are of average weight and still don’t ovulate regularly. Weight is one factor, not the whole picture – and the fixation on it in clinical settings has caused real harm.
- Egg quality. PCOS is primarily an ovulation problem, not an egg quality problem. Most women with PCOS have normal egg quality.
- Age (within reason). Women with PCOS may actually reach menopause slightly later than average, meaning the window for conception may be somewhat longer – though this is not a reason to delay seeking support if you need it.
What actually helps when you’re trying to conceive with PCOS
Lifestyle measures
A diet that reduces blood sugar spikes – often called a low glycaemic index (low-GI) approach – can improve insulin sensitivity and, for some women, restore more regular ovulation. This isn’t about restriction; it’s about steady energy: wholegrains, pulses, vegetables, protein, healthy fats, and fewer ultra-processed carbohydrates. Regular movement, including both aerobic exercise and resistance training, also improves insulin sensitivity. The evidence for inositol supplements (particularly myo-inositol) is growing – some studies suggest it can improve ovulatory function in women with PCOS – but talk to your doctor before starting anything new. You can also explore evidence-based approaches to managing PCOS symptoms through diet and lifestyle for more detail.
Non-hormonal medical options
Metformin, an insulin-sensitising medication, is sometimes prescribed to women with PCOS who are trying to conceive, particularly those with insulin resistance. According to NICE guidelines, it can improve ovulatory frequency and is often used alongside ovulation induction.
Ovulation induction
If lifestyle changes alone aren’t enough, ovulation induction is usually the first medical step. Letrozole (an aromatase inhibitor) is now the first-line recommended treatment in many guidelines, including those from the European Society of Human Reproduction and Embryology (ESHRE). Clomifene citrate (Clomid) was the traditional standard and is still widely used. Both work by stimulating the ovaries to produce a dominant follicle and ovulate. Success rates per cycle are meaningful – many women conceive within three to six cycles. You can read more about what ovulation induction involves and what to expect from the process.
Assisted reproduction
If ovulation induction doesn’t result in pregnancy, IVF is an effective option. Women with PCOS typically respond well to IVF stimulation – sometimes very well, which is why careful monitoring is important to reduce the risk of ovarian hyperstimulation syndrome (OHSS). A specialist will tailor the protocol to your situation.
When to see a doctor
If you have a confirmed or suspected PCOS diagnosis, you don’t need to wait a year before seeking fertility support – especially if your cycles are irregular or absent. The general guidance from Verity (the UK’s PCOS charity) and NICE is:
- See your GP after 6 months of trying if you have irregular cycles or known PCOS.
- See your GP sooner if you have no periods at all, or if you’re over 35.
- Ask for a progesterone blood test to check whether you’re ovulating, a pelvic ultrasound, and hormone panel (LH, FSH, testosterone, AMH).
- If your GP is dismissive or says to “keep trying,” you are within your rights to ask for a referral to a gynaecologist or reproductive endocrinologist.
You deserve a clinician who takes your cycle seriously and works with you on a plan – not one who sends you away with a leaflet about weight.
This article is for general information and is not medical advice. It was reviewed by a certified healthcare professional in line with our editorial policy, and we update our content as the science evolves – but every woman’s body is different, so please speak to a qualified healthcare professional about your own symptoms.