Some women will experience a shortage of good quality eggs even in their early 30's.
Older eggs tend to be less likely to develop into viable embryos once fertilized.
It is very rare for a woman over the age of 45 to conceive a viable pregnancy. A woman's egg supply is severely diminished if one4 ovary is removed. No eggs remain if both of her ovaries are removed. We are able to determine a rough gauge of a woman's egg reserve through a simple blood test performed on or about the third day after he menstrual cycle begins. The test is called FSH and Estradiol.