The last menstrual period is May 14th, you can test whether you are pregnant by drawing blood 7 days after intercourse, or you can test whether you are pregnant by pregnancy test paper when your next menstrual period is delayed for about 7 days, the exact time varies from person to person. If a woman’s menstrual cycle is normal, 7 days after intercourse, a blood test for human chorionic gonadotropin HCG can clarify whether she is pregnant or not. Generally, about 6 days after fertilization, placental chorionic trophoblast cells start to secrete human chorionic gonadotropin, and human chorionic gonadotropin can be detected in the pregnant woman’s blood at 7~9 days after fertilization, so pregnancy can be detected 7 days after intercourse. If you want to use pregnancy test paper to detect whether you are pregnant or not, you generally have to wait for menstruation to be delayed for about 7 days, this is because the rise of human chorionic gonadotropin in the urine is late. If a woman has delayed menstruation after intercourse, it is recommended that she seek medical attention in a timely manner and under the guidance of the doctor, complete the relevant examinations to determine whether she is pregnant.