One of the gender differences in human reproduction is that men make new sperm continuously throughout their lives and women make all of their eggs before they are born. Men are capable of conceiving children late in life while women usually exhaust their supply of...
If you have decided to use in vitro fertilization (IVF) to conceive a child, you can use your own eggs or the eggs of a donor. Because egg quality declines as you age, using donor eggs is especially helpful for older women with low egg number, women who are not...