A member asked:

For what reasons might the menstrual cycle vary from woman to woman?

A doctor has provided 1 answer

Age is a big : Determinant...Ultimately the communication betweeen the brain and ovaries is what drives the first half of a mesntrual cycle and it is this half of the cycle that is the most variable. After a women ovulates, if she is not pregnant, she will bleed within 14 days also as a rule!

Answered 4/7/2013

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