MI
A 21-year-old female asked:

I started another period 20 days after the last period i had. why would that be if i always have a 28 day normal cycle down to the hour?

1 doctor answer1 doctor weighed in
Dr. Rifat Naghmi
Internal Medicine 48 years experience
Period: Periods vary widely from woman to woman. Some periods are punctual, some are unpredictable. See your doctor who may prescribe you oral contraceptives to regulate your menstrual period.
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Last updated Oct 3, 2015

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