A 21-year-old female asked:
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ok so the 1st day of my last pd was aug 8th i have a 31 day cycle... what day am i due to ovulate?

1 doctor answer
Dr. Wesley Grootwassink
29 years experience Obstetrics and Gynecology
Aug 25th: There are 2 parts to your cycle, one prior to ovulation and one post ovulation. The post ovulation phase is more or less a set 14 days, the phase prior to ovulation has a bit more variation. Therefore "ideally" with a 31 day cycle you should ovulate about day 17 or august 25.
Answered on Oct 26, 2012
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