Unsure: "fertile days" are not related to how long your period lasts. They are based on when you ovulate. What matters more is how close one period is to another. If you have a 28 day cycle, most likely you are most fertile between days 12 and 16. So figure out how many days between the beginning of one cycle to the beginning of the next cycle, assuming your cycles are regular and have sex in the middle.
Answered 9/24/2012
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About 2 weeks after : Ovulation occurs about 11-14 days after last menses. Your fertile days are may 2nd to 6th.
Answered 9/13/2019
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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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