How long can you test whether you are pregnant with a test paper?

After 10-14 days of coitus, pregnancy can be detected by test paper.

It takes a certain amount of time for sperm and egg to combine to form a fertilized egg. After that, the fertilized egg will move to the uterus in the fallopian tube and implant in the appropriate position. This process takes 6-7 days. After implantation, the body will start to secrete human chorionic gonadotropin (HCG), and only when HCG reaches a certain level can it be detected by test paper. Some highly sensitive test papers may detect pregnancy at an earlier time, but usually 10-14 days is a relatively reliable detection time.

Even if the test paper shows positive, it is not completely confirmed pregnancy, but also need to go to the hospital for further examination, such as blood HCG test, ultrasound examination, etc., to confirm the diagnosis. If the test paper shows negative, but the menstruation has not been delayed for a long time, it is recommended to test again in a few days, or seek medical advice directly.