What is ovulation? Ovulation is a very important stage in the female menstrual cycle. It usually refers to about the 14th day after the menstrual period. During this period, the eggs in the female ovaries begin to be discharged into the fallopian tube, preparing to combine with sperm for conception. Since ovulation is the time when pregnancy is most likely to occur, women preparing for pregnancy need to know their own ovulation time in order to better control pregnancy. What are the symptoms of ovulation? 1. Body temperature changes: During ovulation, a woman’s basal body temperature will change.