A member asked:

Do you always have to start your period on the same day ? the last 2 months i've started on the 22nd, todays the 22nd and have not started yet.

A doctor has provided 1 answer

The day may very: The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens.

Answered 3/26/2013

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Thank

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