When am I most fertile?


Published: June 9, 2015, 8:17 p.m. - Last Update: July 16, 2015, 1:17 p.m.


Couples who are trying to conceive may want to know when they are most fertile. Fertile days are directly associated with ovulation and require a woman to know her cycle well in order to know when her fertile phase is.


A woman is most fertile 5 days prior to and the day of ovulation. Once ovulation has passed, a woman can no longer get pregnant. Sperm has the ability to survive up to 5 days in a woman's fallopian tubes, which is why the 5 days leading up to ovulation are considered fertile.


Ovulation occurs on approximately day 14 of a woman's cycle if she has a 28 day cycle. Since cycle lengths vary, ovulation day can be anywhere from cycle day 10 to 21, or even later. The fertility awareness method can help you figure out when that fertile window is for your individual cycle. While the charting method allows you to figure out ovulation, devices such as daysy do the job for you, while removing the chance of human error, and can tell you when it is the best time to get busy. Using a woman's basal body temperature when she first wakes up in the morning, a temperature shift indicates when ovulation occurs. Over-the-counter ovulation kits can also assist in determining the fertile window, but may miss the first couple of days.


For more information on how daysy can help you if you are trying to conceive, go to our baby planning section.

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