Are female babies born with eggs?
A female fetus in early development has around 6 million eggs. The number of oocytes reduces steadily so that when a baby is born, she has between 1 and 2 million eggs. Female babies are born with all the egg cells (Oocytes) they are ever going to have.
When a girl reaches puberty, she has between 300,000 and 400,000 eggs. What happened to the rest of the eggs? Before puberty, about 11,000 die each month. After starting your menstrual cycle, a woman loses about 1,000 (immature) eggs every month. That is about 30-35 per day.
Once follicles mature, they finally become sensitive to the hormones of your monthly menstrual cycle. Unfortunately, they are not all winners. Only a single egg ovulates. (with the exception, which in some cases lead to fraternal twins).
By the time a woman is in her 30s, fertility begins to decrease. By the time she reaches 40, the egg supply is down to about 3 per cent of her pre-birth egg supply. By the time the average female reaches 40, there is less than 5 per cent of getting pregnant. Remember that discrepancy between 1 or 2 million eggs in the first sentence? If you are born with a large number of eggs, you may be among the women who are able to have biological children naturally into their mid-or even late 40s.