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How many days out of the month can you actually conceive?

Answer

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Wiki User
02/23/2007

Most women ovulate 12-17 days after the first day of their last menses (average 14), the most fertile days are the three days prior to ovulation. The ovum (egg) remains viable for 12-24 hours, and the sperm remains viable for approx. 72 hours. Intercourse on any of these three days will produce approx. a 20% chance of pregnancy if both partners are normal and healthy.