The earliest time for a woman to determine if she is pregnant is one week or more after intercourse, by testing her blood for human chorionic gonadotropin. After a week of intercourse, the fertilized egg will be planted in the uterine lining, which will cause the female friend’s body to secrete human chorionic gonadotropin, and at this time, you can determine whether you are pregnant by testing the human chorionic gonadotropin in the blood. Because the detection of human chorionic gonadotropin in urine requires the body of human chorionic gonadotropin to reach a certain level to be able to detect, so if you want to determine whether the urine early pregnancy test paper to determine whether the pregnancy, generally need to be more than 10 days after intercourse to be able to detect. It is recommended that if a woman’s period is delayed, she should go to the hospital as soon as possible to find out the reason and rule out the possibility of pregnancy.