It’s widely known that age can affect your fertility, but what are the changes and risks? This blog is an overview of the basic changes in fertility a woman experiences with age.
Women are born with all the eggs they will ever produce, roughly 1,000,000 of them. By the time a girl hits puberty, only 300,000 will remain. A woman only uses about 300 of her eggs for ovulation during her reproductive years.
Women are most fertile in their 20’s — after that, reproductive capabilities begin a slow decline. By age 35, women are 50% less likely to conceive naturally. By the age of 40, she becomes 90% less likely to become pregnant.
The risk of miscarriage increases steadily as a woman ages, with women older than 45 50% more likely to experience one. She also faces greater chances of giving birth to an infant with genetic problems, such as Down Syndrome. The chances of having twins also increases with age.
For women who are no longer ovulating, there are still options to become pregnant. Many use an egg donor. The donated eggs are fertilized in a laboratory as a form of IVF. They are then implanted into the infertile woman so she can experience pregnancy, but she won’t be genetically related to the child.