Understanding Your Menstrual Cycle
When a baby girl is born she comes with a storehouse of eggs in her ovaries and she will never be able to produce anymore. When she becomes mature and begins to go through puberty, only around 15 of her 20000 eggs will make an attempt at maturation in any cycle. Follicle stimulating hormone acts as a communicator and tells the egg that it is time for its release. Every egg is enclosed in a follicle all its own, the follicles contains estrogen.