This is the 1st video of ovulation in the world, performed by a trans-vaginal laparoscopy by a team of Belgian researchers: Stephan and Ivo Brosens Gordts. and ingredients are: a women, a small surgery, an endoscope, a good timing and luck! We proceeded to measure temperature and hormone levels to detect the precise time of ovulation.. It is progesterone that induces an increase of 5 to 6 tenths of a degree a day after ovulation. The egg stands out in a pile of mucus (which can be seen on the video) and is hosted by the fringes of the fallopian tube to continue it's adventure in the womb.. it should be remembered that only the ovaries, fallopian tubes, and uterus are intra-peritoneal organs. So, by a small incision on the walls of the vagina will see with the endoscope that the ovary get closer to the tubes when it will release the egg. Follicule of De Graff.
Sperm survive in the cervix for 3 to 5 days.
The egg has a lifespan of 12 to 24 hours.
So that the period of fertility is usually between 4 days before ovulation and 24 hours after.