During a woman’s ovulation period, after the egg is discharged from the ovary, it takes about ten minutes to two hours for the egg to reach the pot-belly of the fallopian tube and wait for fertilization. If a woman’s fallopian tube umbilical picks up the egg smoothly and the fallopian tube is very open, the time it takes for the egg to reach the jugular abdomen will be shorter. If the umbilical end of the fallopian tube does not pick up the egg in time after the ovary discharges the egg, or if there is mild inflammation in the fallopian tube, the time to reach the peritoneum of the fallopian tube may be slightly longer. After the egg is discharged from the ovary, its survival period is generally within 48 hours, during this period of intercourse egg and sperm can combine to develop into a fertilized egg, pregnancy can generally occur. Women can detect pregnancy early by measuring the level of human chorionic gonadotropin in their blood about 10 days after having sex during ovulation, which is usually more than 10 IU/L.