Pre-Puberty

A girl gets born with all the eggs she will ever have already present in her ovaries. Her body has no ability to make new eggs. There are around 2 million eggs, 1 million in each ovary.

From the moment she is born, the eggs start to age and deteriorate. Prior to puberty, 11,000 eggs die every month.

When she reaches puberty in her teen years, she has about 300,000 to 400,000 live eggs left distributed amongst her ovaries. From then on, about 1,000 eggs will die every month.

The remaining eggs will deteriorate as they age, and many will be incapable of making a new life, due to DNA and genetic errors inside the eggs.

By age 40, the overwhelming majority of eggs will be damaged beyond the ability to make a new life, and the woman becomes infertile for practical purposes. Of course, there are exceptions, and women in their 40s can still produce offspring, but the odds are against the fertilized egg making it to a baby. Many women over the age of 40 needs medical intervention to get pregnant, and even then it comes with a whole host of potential genetic problems for the baby.

Before puberty, a girl’s body is devoid of estrogen. This means that her vagina is dry, the walls are thin and not very elastic