If regular cycles...: With regular menstrual cycles, one's ovulation day is about 14 days BEFORE the first day of the next menstrual period. So, one can mark on her calendar the first day she expects her next period. Her more fertile days are about 11-17 days BEFORE that marked day on her calendar. She can do this each month, to estimate her more fertile days each month.
Answered 11/15/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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