If you have polycystic ovary syndrome (PCOS) and you’re pregnant — or trying to become pregnant — you may have heard your doctor use the phrase “high-risk pregnancy.” That can feel alarming, but it doesn’t mean something will go wrong. It simply means your care team will watch you more closely to keep both you and your baby as healthy as possible. PCOS is one of the most common hormonal conditions affecting women of reproductive age, and while it does raise the likelihood of certain complications, thousands of women with PCOS go on to have safe, healthy pregnancies every year. Understanding what to expect is the first step toward feeling prepared and confident.

What Makes a PCOS Pregnancy High-Risk?

PCOS affects your hormones, insulin levels, and metabolism — all of which play a significant role during pregnancy. Because of these underlying imbalances, your body may respond to pregnancy differently than it would without PCOS, which is why your provider will categorize your care as high-risk and monitor you more frequently.

Here are the key risks associated with a high-risk pregnancy with PCOS:

• Gestational diabetes is more common in women with PCOS because the condition often involves insulin resistance, making it harder for your body to regulate blood sugar during pregnancy.
• Preeclampsia, a serious condition involving high blood pressure and organ stress, occurs at higher rates in PCOS pregnancies and requires close monitoring throughout your second and third trimesters.
• Miscarriage risk is elevated for women with PCOS, particularly in the first trimester, which is why early hormonal support and monitoring are often recommended.
• Preterm birth — delivering before 37 weeks — is somewhat more likely in women with PCOS, which can mean a longer NICU stay for your baby.
• C-section likelihood is higher in PCOS pregnancies, often linked to labor complications or conditions like gestational diabetes that develop during pregnancy.

Knowing these risks allows your care team to act early, which dramatically improves outcomes for both you and your baby.

Early Pregnancy: What to Expect

First Trimester Monitoring

The first trimester is a particularly important time when you have PCOS. Your doctor will likely want to see you earlier and more frequently than a standard prenatal schedule. You can expect blood work to check your hormone levels, thyroid function, and blood sugar. Your provider will also review any medications you were taking before pregnancy to determine which ones are safe to continue.

• Your doctor may order additional lab panels to check fasting glucose and insulin levels as a baseline for tracking gestational diabetes risk.
• Blood pressure will be recorded at every visit so that any early signs of preeclampsia can be caught as soon as possible.
• Your weight will be monitored regularly, as excessive weight gain in the first trimester can compound insulin resistance and increase pregnancy complications.

Hormonal Support with Progesterone

One of the most common interventions for PCOS pregnancies is progesterone supplementation during the early weeks. Women with PCOS often have lower progesterone levels, which can make it harder for the uterine lining to support a developing embryo.

• Your doctor may prescribe progesterone supplements — usually in vaginal suppository or oral form — to reduce the risk of early pregnancy loss.
• Progesterone support is typically continued through the first trimester, often until around week 10 to 12, when the placenta takes over hormone production on its own.
• If you experience spotting or cramping early in your pregnancy, contact your doctor right away, as additional hormonal support may be needed.

Early Ultrasounds

Rather than waiting for the standard 8- to 10-week scan, your provider will likely schedule an ultrasound as early as 6 to 7 weeks to confirm a heartbeat and check that the pregnancy is developing in the uterus rather than the fallopian tube.

• An early ultrasound can confirm the gestational age of your baby with greater accuracy, which is helpful for tracking growth benchmarks throughout your pregnancy.
• Seeing your baby’s heartbeat early on can also provide meaningful reassurance during what is often an anxious waiting period.

Second and Third Trimester Challenges

As your pregnancy progresses, your care team will continue monitoring you for complications that are more common with PCOS. Here is what to expect in your second and third trimesters:

• Glucose tolerance testing will typically be done earlier than usual — often between weeks 24 and 28, and sometimes as early as the first trimester — to screen for gestational diabetes PCOS patients are at higher risk of developing.
• Blood pressure checks at every prenatal visit are essential for detecting preeclampsia, which most often appears after the 20th week and can escalate quickly without treatment.
• Fetal growth scans may be scheduled more frequently than in a standard pregnancy to ensure your baby is growing at a healthy rate, since both gestational diabetes and other PCOS-related factors can affect fetal size.
• Non-stress tests or biophysical profiles may be ordered in the third trimester to monitor your baby’s movement, heart rate, and fluid levels if any concerns arise.
• Mental health check-ins should be part of your prenatal care, as the stress of a high-risk pregnancy can contribute to anxiety and depression — both of which are already more prevalent in women with PCOS.

Managing PCOS During Pregnancy

While you cannot cure PCOS, there is a great deal you can do to manage it effectively throughout your pregnancy and reduce your risk of complications.

• Follow a balanced, low-glycemic diet rich in vegetables, lean proteins, whole grains, and healthy fats to help keep your blood sugar stable and support healthy weight gain.
• Stay physically active with pregnancy-safe exercise like walking, swimming, or prenatal yoga, which helps improve insulin sensitivity and supports cardiovascular health — aim for at least 30 minutes most days, unless your doctor advises otherwise.
• Ask about medication safety before continuing or stopping any PCOS-related medications; metformin, for example, is sometimes continued into pregnancy under medical supervision, but this decision should always be made with your doctor.
• Work with a specialist team that may include a maternal-fetal medicine (MFM) specialist, a registered dietitian, and an endocrinologist, alongside your OB-GYN, to ensure every aspect of your health is being addressed.
• Track your symptoms and report changes promptly — sudden swelling, severe headaches, blurred vision, or a significant decrease in fetal movement should always be reported to your doctor immediately.

Emotional and Mental Health

Managing a high-risk pregnancy with PCOS is not just a physical challenge it is an emotional one, too. It is completely normal to feel anxious, overwhelmed, or even grieved by a pregnancy experience that feels more complicated than you hoped.

• Acknowledge your anxiety rather than pushing it aside; speaking openly with your provider about your fears can lead to additional support referrals and help you feel less alone.
• Connect with a PCOS support community, whether online or in person, where other women share experiences of navigating pregnancy with PCOS hearing others’ stories can be genuinely grounding.
• Consider working with a therapist or counselor who specializes in perinatal mental health, especially if you find that worry is affecting your sleep, relationships, or daily functioning.
• Practice consistent self-care through rest, gentle movement, journaling, or whatever helps you feel most centered taking care of your mental health is a direct investment in your baby’s wellbeing, too.
• Lean on your support network of partners, family, or close friends, and don’t hesitate to ask for help with practical tasks so you can conserve your energy and reduce stress.

Conclusion

A PCOS diagnosis does not mean you cannot have a healthy pregnancy it means your pregnancy deserves a higher level of attention and care. With early monitoring, the right medical team, lifestyle support, and emotional resources, the vast majority of women navigating a high-risk pregnancy with PCOS go on to deliver healthy babies. Stay informed, stay in close contact with your providers, and be gentle with yourself throughout the journey. You are not alone in this, and with the right care in place, you and your baby have every reason to thrive.

Frequently Asked Questions

Q: Can you get pregnant naturally with PCOS?

Yes, many women with PCOS conceive naturally, though it may take longer due to irregular ovulation. PCOS is a leading cause of infertility, but that does not mean pregnancy is impossible without medical assistance. Lifestyle changes such as weight management, a balanced diet, and regular exercise can help regulate ovulation. If you have been trying to conceive for 12 months without success (or 6 months if you are over 35), speak with your doctor about ovulation-stimulating medications or other fertility treatments.

Q: Is metformin safe to take during pregnancy if you have PCOS?

Metformin is sometimes continued during PCOS pregnancy, particularly for women at high risk of gestational diabetes, but this is a decision that must be made with your doctor. Current research suggests it is generally considered low-risk, and some studies show it may reduce miscarriage rates in women with PCOS. However, it is not universally recommended, and your provider will weigh the potential benefits against any individual risks before advising you to continue or discontinue use.

Q: What is the miscarriage risk with PCOS?

Women with PCOS do have a higher rate of early pregnancy loss compared to those without the condition, with some studies suggesting the risk may be two to three times higher. This is believed to be related to hormonal imbalances, elevated luteinizing hormone (LH) levels, and insulin resistance. The good news is that early interventions such as progesterone supplementation and close monitoring can help support the pregnancy and reduce this risk. If you have experienced recurrent miscarriages, ask your doctor about a full hormonal evaluation.

Q: Can PCOS cause birth defects in the baby?

PCOS itself is not directly linked to an increased risk of birth defects. However, conditions that can develop during a PCOS pregnancy such as gestational diabetes or obesity may carry some associated risks if not well managed. Keeping your blood sugar, blood pressure, and weight within healthy ranges throughout your pregnancy significantly reduces any potential risks to your baby’s development. Always discuss your specific situation with your OB-GYN or maternal-fetal medicine specialist.

Q: How often will I need prenatal visits if I have PCOS?

Your prenatal visit schedule will likely be more frequent than the standard schedule. In the first trimester, you may be seen every two to four weeks rather than once a month. As your pregnancy progresses and depending on how well-controlled any complications are, visits may increase to every one to two weeks in the third trimester. Your care team will tailor the schedule to your individual needs, so the exact frequency will vary. The important thing is to attend every appointment and communicate any changes in how you feel between visits.