Menstrual cycle: You do not state if you are sexually active, or of the period on the 13th was "late". If active you could have been pregnant and miscarried. A normal menstrual cycle counted from the first day of one period to the first day of the next varies a bit. Cycles can be between 21 to 35 days with 28 days considered "average". Flow may last 2 to 7 days. Hormone fluctuations influence the cycle as well.
Answered 3/27/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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