The time of detection of pregnancy is usually related to the test method and the usual menstrual cycle. On the 6th-7th day after the sperm and egg unite to form a fertilized egg, the fertilized egg lays in the uterus and produces HCG in the blood, at which point pregnancy can be detected by a blood HCG test. The HCG value in urine is lower than that in blood, and the early pregnancy test requires a certain level of HCG in urine to detect pregnancy, which can usually be detected about 2 weeks after intercourse. For women with regular menstrual cycles, early pregnancy test strips can be used to monitor pregnancy about 10 days after menstruation, and the development of the gestational sac and fetal heart and bud can be detected by ultrasound about 49 days after menopause. In addition, it is recommended that pregnant women should take proper rest in early pregnancy, keep their mood relaxed, avoid exertion, cold, anxiety and tension, increase food rich in vitamins and proteins, forbid cold, spicy and stimulating food, pay attention to pubic hygiene, and forbid sexual intercourse in early pregnancy.