IVF doctor shares little-known fertility secrets for Aussies struggling to conceive: 'Might be surprised'

For many, the path to parenthood isn’t straightforward. Despite common assumptions, conceiving a child can be a complex process for couples, and increasingly, a challenging one given recent demographic trends.

Declining Birth Rates and the Challenges of Conception

Australia’s birth rate is projected to fall to a record low of 1.42 in 2025-26, a figure significantly below the rate needed to maintain population levels. This decline coincides with increasing awareness of the difficulties many face when trying to start a family. Sydney fertility doctor Oybek Rustamov shared insights with Yahoo Lifestyle regarding common hurdles and timelines for conception.

Did You Know? Belinda Harbach and her husband used IVF after four years of trying to conceive naturally, ultimately welcoming their daughter, Cleo, in December 2025.

Dr. Rustamov explained that for healthy couples in their 20s, it typically takes six to 12 months of regular, unprotected intercourse to conceive. However, the likelihood of success decreases with age. A healthy couple in their early 30s has a 15 to 20 percent chance of conceiving each cycle, but this percentage drops significantly once the female partner reaches 35.

The Impact of Age on Fertility

The challenges of conception become more pronounced with age, both for women, and men. Dr. Rustamov noted that for couples aged 40 to 44, the chances of natural conception each month are less than 5 percent. Here’s due to a decline in both egg quality and quantity in women, and a decrease in sperm quality in men over 40. The normalization of later-in-life pregnancies, exemplified by celebrities like Hilary Swank and Brigette Nielsen, doesn’t necessarily reflect the broader reality.

Expert Insight: The declining birth rate, coupled with the increasing age at which people are attempting to conceive, suggests a growing need for accessible information and support regarding fertility options. The experiences shared highlight the emotional toll of infertility and the importance of open conversation.

For those considering delaying parenthood, egg freezing is an option. Dr. Rustamov suggests that the period between 30 and 35 is the “ideal time” to explore this possibility, as freezing eggs at a younger age can significantly increase the chances of future success. A 32-year-old woman freezing five eggs has a 55 percent chance of a live birth, while a 38-year-old would need to freeze around 15 eggs to achieve a similar outcome.

Proactive Steps and Lifestyle Factors

Dr. Rustamov emphasizes the importance of proactive fertility health management. He recommends that individuals, regardless of age, consider hormone blood tests and semen analyses to assess their reproductive health. Lifestyle factors also play a crucial role. Obesity can lower sperm count in men by up to 50 percent and affect both male and female ovulatory cycles. A Mediterranean-style diet, rich in healthy fats, fish, iron, and fruits and vegetables, may be beneficial, as can incorporating vitamins like folic acid, antioxidants, vitamin B12, and omega-3 fatty acids.

He also strongly advises against smoking, which can damage the ovaries and accelerate menopause in women.

Frequently Asked Questions

How long does it typically take a healthy couple in their 20s to conceive?

Dr. Rustamov stated that for a healthy couple in their 20s, it typically takes around six to 12 months to conceive with regular, unprotected intercourse.

What is the chance of conceiving naturally for a couple where the woman is over 35?

The source states that chances reduce significantly once the female partner reaches 35, but does not provide a specific percentage.

What factors affect the success rate of egg freezing?

According to Dr. Rustamov, factors influencing success include age and health at the time of freezing, the number of mature eggs retrieved, survival rates during freezing and thawing, successful fertilization, and successful embryo implantation.

What steps can you take to proactively assess your fertility health?

IVF doctor shares little-known fertility secrets for Aussies struggling to conceive: ‘Might be surprised’