Females receive all of their eggs while still in utero. Of the one million eggs a woman has at birth, approximately four hundred will ever mature and be released into the fallopian tubes (ovulation) from puberty to menopause. The rest of the eggs (-99.96%) die within the ovaries without being released. As an egg donor, you will only donate eggs that would have died naturally or matured in your ovaries that month. Your supply of eggs for future months will still be there when you want to use them.