Gynaecologist Shares 10 Facts About Fertility For Women In Their 30s Fertility Doesnt Crash At 35

While fertility does change with age, it is far from a cliff edge, and more women than ever are conceiving successfully in their 30s and even beyond 35. Understanding how fertility actually works, what influences it and when to take action can help you make informed decisions without unnecessary panic.

According to Dr Lee, most women do not ovulate on day 14 of their menstrual cycle. Ovulation varies from person to person, and tracking when you ovulate can be one of the most valuable things you can do to better understand and support your fertility. She explains, “Most women don't ovulate on day 14. Yours probably doesn't. Figuring out your actual ovulation day is one of the most useful things you can do for your own body. Your clinic can track this properly.”

Dr Lee points out that while stress does not directly cause infertility, prolonged or chronic stress can disrupt the menstrual cycle. She says this is a signal from your body that stress needs to be managed more effectively. She highlights, “Stress doesn't cause infertility, but prolonged stress will often disrupt your cycle. That's your body sending a signal.”

The gynaecologist recommends starting folic acid supplements at least one month before trying to conceive. She explains that the baby's neural tube closes within the first four weeks of pregnancy, often before you even realise you're pregnant. She advises, “Start folic acid at least a month before you try to get pregnant. Your baby's neural tube closes in the first four weeks, usually before you know you're pregnant.”

When it comes to menopause, family history can offer valuable clues. According to Dr Lee, knowing when your mother reached menopause may help predict your own ovarian reserve and reproductive timeline. She notes, “When your mum hit menopause matters. Menopause timing runs in families, and it tells you something about your own ovarian reserve.”

According to the fertility expert, having a regular menstrual cycle does not necessarily mean you are ovulating normally. She recommends actively tracking ovulation rather than relying on cycle regularity alone. Dr Lee highlights, “A regular cycle doesn't mean you're ovulating normally. You have to actually track it to know.”

Dr Lee points out that sperm takes around three months to develop, meaning your partner's lifestyle during that period can significantly influence sperm quality. Habits such as a poor diet, smoking and excessive alcohol consumption can impair sperm health and may contribute to pregnancy complications more than many people realise. She stresses, “Sperm takes three months to develop. So your partner's lifestyle right now will show up in his sperm quality in three months.”

The gynaecologist also points out that, like sperm, eggs take around three months to mature. Your lifestyle during this period can play an important role in determining egg quality. She notes, “Eggs also take three months to fully mature which also means your lifestyle matters just as much as your partner’s.”

Dr Lee highlights that fertility does not suddenly decline at the age of 35. However, she notes that the rate of decline begins to accelerate from that point onwards. She explains, “Fertility doesn't crash at 35. But the rate of decline does accelerate. The difference between 33 and 37 is steeper than most women expect.”

According to the fertility specialist, any supplements intended to support conception should ideally be started at least three months before trying to conceive. She explains that they are far less effective if you only begin taking them after a positive pregnancy test. She states, “Any supplement worth taking for conception needs three months. It won't do the same thing if you start after the positive test.”

Dr Lee recommends assessing your fertility baseline by the age of 30, as your reproductive options gradually become more limited with age. She highlights, “Get your fertility baseline at 30. You'll have more options then than you will at 36.”

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. It is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.

Eshana Saha is a fresh face in lifestyle and cultural journalism, bringing a refined, multidisciplinary perspective to the intersection of entertainment, fashion and holistic wellbeing. With less than a year of professional experience, she has quickly adapted to high-pressure editorial environments and currently works full-time with HT Media. Prior to this, she interned for nearly six months with Hindustan Times’ entertainment and lifestyle vertical, where she gained hands-on experience in digital reporting, trend analysis and editorial storytelling. Based in New Delhi, Eshana specialises in comprehensive coverage of major cultural moments — from international film press tours to the curated aesthetics of global fashion showcases, award shows and music-centred events. She holds a Bachelor’s degree in English from St Xavier’s University, Kolkata, and a Master’s degree in English from the University of Delhi, equipping her with a strong academic foundation and a keen ability to deconstruct complex cultural trends into clear, high-impact narratives. Beyond the red carpet, Eshana has developed a growing focus on health and wellbeing reporting. She bridges the gap between celebrity-driven trends and practical, evidence-informed lifestyle advice, ensuring her work remains both aspirational and grounded in editorial rigour. She has extensively covered the health implications of Delhi’s air pollution crisis, while also playing a key role in amplifying expert-led insights on women’s health and mental wellbeing, helping translate complex medical perspectives into informed, impactful public awareness. An artist at heart, she explores multiple creative forms — from visual arts and music to culinary experiments — and brings a creative’s eye for nuance, texture and detail to every story. Whether analysing runway dynamics or examining emerging wellness movements, she remains committed to accuracy and the highest standards of contemporary journalistic ethics.Read More