Q: I've heard that you can pregnant at any time of the month, but I'm not sure that is true. Can ovulation occur at any time during the cycle? Can it happen more than once?
A: The exact day of ovulation can vary from one cycle to the next cycle. Once ovulation occurs, the hormone progesterone is produced by the corpus luteum in the ovary, suppressing the release of all other eggs until the following cycle.
Sometimes, ovulation occurs more than once. When this happens, it usually occurs within 12-24 hours of each other. Once a woman fully ovulates, it is virtually impossible for her to ovulate again until the following cycle.