Usually about 7-10 days after intercourse, a urine or blood test for human chorionic gonadotropin, or HCG, can confirm pregnancy. About a week after fertilization the fertilized egg lays and develops, the human chorionic gonadotropin HCG in the woman’s body rises, which can be detected in the serum at this time, only in a relatively low amount, but as the development time increases, the amount of HCG in the blood also increases. For women with normal menstrual cycles, pregnancy can be detected by checking the urine early pregnancy test 7-10 days after intercourse, and if necessary, a blood test can be done. In addition, for some women with irregular menstrual cycles, their ovulation period may be delayed accordingly, and the time to detect a positive urine pregnancy test may also be delayed accordingly, and can generally be detected 6 weeks after menopause.