The accuracy of the pregnancy test will be higher after the next menstrual day when there is a pause in menstruation after intercourse. After intercourse, first observe whether there is a pause in menstruation, menstruation resumed at the normal time, it means that there is no pregnancy in the previous intercourse, and there is no need to use the pregnancy test to detect pregnancy. The trophoblast cells secrete HCG seven days after the development of the fertilized egg, and the accuracy of the pregnancy test will be higher after the next menstrual day. At first, try to choose morning urine for the test, the concentration of human chorionic gonadotropin in morning urine is higher, and the test results will be more accurate. It is important to know the correct way to test the pregnancy test, such as checking whether the pregnancy test is within the validity period before the test, observing the results within 5-10 minutes of the test, and not observing the results for too long, so that the test results will be more accurate. After a positive pregnancy test, you can go back to the hospital for a blood test to improve the accuracy.