Before birth, a fetus starts with around 2 million eggs in each ovary. Those eggs are trimmed down over time, and a girl is born with around 300,000 eggs in each ovary.
She normally releases 1 egg a month during her fertile years.
Every 14-18 days per cycle. To determine this you count the first day of your period as 1 and mark off each day on a calendar. The average cycle is 28 days and ovulation happens about day 14 in the...