These pictures are incredible! (First time seen clearly on a human female). This was captured by Dr Jacques Donnez (2008) while he performed a laparoscopic hysterectomy on a 45-year-old female. In these photos you will see the follicle (red) – a fluid-filled sac on the surface of the ovary (white) containing the egg. The process lasted approximately 15 minutes.
The egg (ovum) is only viable for pregnancy for 24 hours after its release. However, if sperm were already present at the cervix or in the uterus before ovulation occurred, pregnancy could take place. Sperm typically remain viable for about 72 hours. This is why there can be a “window” of time around ovulation when a woman can achieve pregnancy.