In general, pregnancy can be detected by blood chorionic gonadotropin about 8 days after intercourse and by urine chorionic gonadotropin about 12 days after intercourse. After the fertilized egg is laid, the blood chorionic gonadotropin will increase significantly, and it takes about a week for the fertilized egg to be laid, so the blood chorionic gonadotropin test should be done after a week, at the earliest 8 days after intercourse, to determine if you are pregnant. At about 12 days after intercourse, the chorionic gonadotropin will reach the urine through the blood circulation. At this time, when the urine is tested with early pregnancy test paper or early pregnancy stick and the result is positive, it generally indicates pregnancy. In addition, the morning urine specimen should be used when testing with the early pregnancy test paper or early pregnancy stick. After pregnancy is detected, you should go to the ultrasound room of the obstetrics department of the hospital to check whether the location of the breeding sac is in the uterine cavity.