How often does an adult female release an ovum from one of her ovaries

Well, a womans cycle is nearly impossible to predict but the "standard" cycle is that a woman ovulates 14 days after her period.

. Conception usually occurs about 5-7 days after intercourse

2. Your most fertile period is about 5 days before ovulation

3. For most (but not all) women ovulation occurs about 14 days prior to her period.

Usually once a month, but it can vary