Generally about 2 weeks after the day of ovulation can be used test paper to detect pregnancy, but there will be individual differences. Fertilized eggs can be formed about 24 hours after intercourse during ovulation, and generally 6~7 days after fertilization the fertilized egg will enter the uterine cavity and implant, and hCG (human chorionic gonadotropin) can be detected in the maternal serum 1 day after implantation. However, hCG appears later in the urine, and pregnancy is usually detected by early pregnancy test paper about 2 weeks after ovulation, but there may be individual differences, and those with irregular menstruation may have their periods earlier or later. For pregnancy detected by early pregnancy test paper, ultrasonography should also be carried out at about 40 days after menopause to clarify normal intrauterine pregnancy, and at the same time, it can also exclude pathological pregnancy such as ectopic pregnancy and hyperemesis gravidarum. Early pregnancy should pay attention to appropriate rest, not strenuous exercise, not recommended coitus, continue to follow the doctor’s instructions to take folic acid.