A woman is fertile for up to one day after ovulation, per About.com. An egg is viable for 12 to 24 hours following ovulation, the American Pregnancy Association notes. After that time, unfertilized eggs then disintegrate... More »

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A woman's egg lives in the uterus for 12 to 24 hours after ovulation. This short time period makes it critical to understand ovulation to increase chances of pregnancy. More »

It is possible to create an ovulation chart by tracking the timing of menstrual cycles for at least three consecutive months, as explained by WebMD. Ovulation typically occurs about halfway through the overall menstrual ... More »

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An ovulation calculator estimates a woman's fertile days in a month based on the dates of menstruation. The calculator estimates that ovulation occurs around day 14 of a 28-day cycle, explains WebMD. Ovulation may occur ... More »

To determine when ovulation occurs, if your cycles are regular, subtract 14 days from the length of your cycle, according to Parents.com. Ovulation typically occurs on day 14 in a 28-day cycle. For irregular cycles, you ... More »

Fertile cervical mucus, which occurs just before ovulation, typically lasts between three and four days, according to the Mayo Clinic. Women that are trying to conceive can monitor their cervical mucus patterns to identi... More »

There is no guaranteed safe day to avoid pregnancy, but abstinence during ovulation can substantially reduce your chance of becoming pregnant. Use the rhythm method to recognize the days you are most fertile and do not e... More »

www.reference.com Health Women's Health Birth Control