How many days is ovulation? As the follicle matures, it gradually moves toward the surface of the ovary and protrudes outward. When the follicle approaches the surface of the ovary, the cells of this surface layer become thin and finally rupture, and after most of the follicular fluid flows out, the egg cell is discharged, which is called ovulation. If the menstrual period is very accurate ah women, usually about 14 days before the next menstrual period, the day of ovulation that is 5 days before and 4 days after. Together with the day of ovulation, a total of 10 days is called ovulation. After the egg is discharged from the ovary, it survives in the fallopian tube for 1-2 days, waiting to be fertilized. The man’s sperm in the woman’s reproductive tract can maintain the ability to fertilize for 2-3 days, so it is easy to conceive in the days before and after intercourse after the egg is discharged.