When the egg is released then it moves to the fallopian tube where it stays for about 24 hours or one day. After the egg is not fertilized then it breaks down and your periods (menstruation cycle) starts after two weeks. The retrieved egg is fertilized when it joins with a sperm cell. The fertilized egg is then formed in an embryo and the embryo is then implanted into the uterus of a woman.
Egg gets fertilized with sperms. When eggs are not fertilized, then they are removed from the body after ovulation in the form of menstruation. Fertilization of eggs does not lead to menstruation in the woman.