A member asked:

I've been on my period for 3 weeks and it only lasts 5 days usually before that i didn't have my period for 3 months. i'm 16 what causes this?

A doctor has provided 1 answer
Dr. Henry Jacobs answered

Specializes in Obstetrics and Gynecology

Common: you probably did not ovulate. this messes up your periods for a while, but they will straighten out usually. or you can do BCPs which will regulate your periods

Answered 9/12/2014

3.7k views

Thank

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