A Brief History of Your Eggs Believe it or not, all of the eggs in your ovaries have been there since you were just a fetus developing in your mother’s womb. By the time she was about 20 weeks pregnant with you, you had 7 million eggs! Over the second half of her pregnancy, you lost a lot of those eggs, and were born with between 1 and 2 million.  As you continued to grow, even more of those eggs dropped off, and when you hit puberty and got your first period you had somewher