Check pregnancy check urine HCG, blood HCG and pelvic ultrasound and other items. 1. Urine HCG: After pregnancy, human chorionic gonadotropin in urine will be significantly elevated, usually about 2 weeks after intercourse or menstruation is delayed for about 3~7 days, you can detect pregnancy through pregnancy test paper or pregnancy test stick, such as a positive test result indicates that the chances of pregnancy are very high. 2. Blood HCG: After pregnancy, the trophoblast cells will secrete a large amount of human chorionic gonadotropin, usually one week after intercourse, you can determine whether you are pregnant by drawing blood to check the HCG in the blood, if the blood HCG rises above the normal value, it means that there is a possibility of pregnancy, and the accuracy is relatively high. 3. Pelvic ultrasound: After pregnancy, you can wait for about 42 days after menopause to go to the hospital to do ultrasound, if you see the gestational sac, you can be diagnosed as pregnant and intrauterine pregnancy. Checking for pregnancy is mainly to check the above three items, after diagnosis of pregnancy should be supplemented with folic acid, and do a good job of regular obstetric examination.