Generally, the earliest time to detect pregnancy is about 10 days after intercourse.
Clinically, if you want to determine whether you are pregnant or not, you can choose to carry out blood HCG test or urine test, blood HCG test is relatively early, about 10 days after intercourse can be detected. It can be detected about 10 days after intercourse because the level of human chorionic gonadotropin in the body rises 10 days after intercourse, and the hormone in the blood rises faster, so it can be detected in this way.
If you want to have a urine test you may need to wait for some time, probably until your period is delayed for about 3 to 7 days before you can have the test. If you are already pregnant, you need to do your usual daily nursing care and eat more light and nutritious food. In addition, to determine whether intrauterine pregnancy, ultrasound is also needed to further clarify.