How many eggs should you freeze to have a baby in the future? Experts weigh in

Planning to have children later in life but not ready for pregnancy right now? Egg freezing is one option women can consider to preserve their reproductive potential. However, the process raises several questions, including how many eggs need to be frozen, the best age to undergo the procedure and whether one cycle is enough.

According to a report by The Indian Express, fertility specialists highlight the importance of age, egg quality and ovarian reserve when deciding how many eggs to freeze for a future pregnancy. While freezing a higher number of mature eggs may improve the chances of having a child later, there is no fixed number that guarantees a successful pregnancy or live birth.

Dr Amrita Singh, fertility specialist at Nova IVF Fertility, Preet Vihar, Delhi, explains that there is no single ideal egg count for everyone. The number a woman may need depends on her age, egg quality and reproductive goals.

For women freezing their eggs before the age of 35, around 12 to 16 mature eggs may offer a reasonable chance of having one child in the future. Those hoping to have more than one child may need to freeze additional eggs. These figures are general estimates, however, and individual outcomes can vary.

What Is the Best Age to Freeze Your Eggs?

Age plays a significant role in fertility and the likelihood of achieving a pregnancy using frozen eggs. As women grow older, the number of eggs available generally declines, while egg quality can deteriorate. The risk of chromosomal abnormalities also increases with age.

Dr Singh notes that eggs frozen at a younger age generally have a better chance of resulting in a successful pregnancy. She suggests that women consider egg freezing between the ages of 29 and 32, when egg quality is generally better, rather than waiting until after 35.

ALSO READ: How to prepare your body before egg freezing: What science says and what really helps 

Women who freeze their eggs at 35 or older may need a larger number of eggs to achieve comparable chances of having a baby. However, freezing more eggs cannot completely compensate for age-related changes in egg quality.

The decision also depends on individual circumstances, including medical history, fertility goals and whether a woman plans to have one child or more in the future.

Does Freezing More Eggs Increase Your Chances of Pregnancy?

Freezing more mature eggs can improve the likelihood of a future pregnancy, but the total number alone does not determine the outcome.

Dr Beena Muktesh, medical director of reproductive medicine at Motherhood Fertility & IVF, explains that not every frozen egg will survive thawing, fertilise successfully or develop into a healthy embryo.

Consequently, the number of eggs frozen is not the same as the number that will eventually be available for use in an attempt to achieve pregnancy. The outcome also depends on the woman's age when the eggs are frozen, their quality, sperm quality and embryo development.

ALSO READ: Egg freezing explained through Indian celebrities who shared their stories

A woman's health at the time she attempts pregnancy can also influence the chances of a successful outcome.

According to Dr Muktesh, the focus should be on freezing an adequate number of good-quality eggs rather than simply trying to maximise the total count.

Even when a large number of eggs are frozen, pregnancy and live birth cannot be guaranteed. Egg freezing preserves eggs for potential future use, but it does not eliminate the uncertainties associated with fertility treatment.

How Do Doctors Determine How Many Eggs You Need to Freeze?

There is no universal egg-freezing target that works for every woman. Fertility specialists consider age, medical history, ovarian reserve and future family plans before recommending a target number.

Ovarian reserve refers to the remaining supply of eggs in the ovaries. Two commonly used assessments are anti-Müllerian hormone (AMH) testing and antral follicle count (AFC).

ALSO READ: World IVF Day: What is sperm freezing and how is it beneficial to men

AMH is measured through a blood test, while AFC involves an ultrasound examination to count small follicles in the ovaries. These tests help doctors estimate ovarian reserve and predict how the ovaries may respond to fertility medications.

Dr Muktesh explains that these assessments can help predict the likely number of eggs that may be retrieved during a cycle. However, they cannot guarantee the number of eggs collected or determine with certainty whether a woman will have a baby using those eggs.

It is also important to distinguish between eggs retrieved and mature eggs suitable for freezing. A woman may have 10 to 15 eggs retrieved during a cycle, but only a proportion may be mature enough to freeze. The final number depends on factors such as age, ovarian reserve and response to medication.

If the first cycle does not yield enough mature eggs to meet the agreed target, a fertility specialist may recommend another cycle. This may be particularly relevant for women who wish to have more than one child.

ALSO READ: Eggs on ice, baby advice: What freezing your eggs can really promise

Ultimately, the number of eggs to freeze should be decided in consultation with a fertility specialist. Understanding the relationship between age, egg quality and ovarian reserve can help women make informed decisions about egg freezing and their future reproductive plans.