What is Ovulation? ​Ovulation is the process where a mature egg is released from one of the ovaries. This egg then travels down the fallopian tube, where it is available to be fertilized by sperm. The egg is viable for about 12 to 24 hours after its release. ​When Does it Happen? ​Ovulation typically occurs around the midpoint of the menstrual cycle, though this can vary. In an average 28-day cycle, it usually takes place about 14 days before the start of the next menstrual period. However, cycl