If your period is usually regular and comes on time every month, you can detect it with an early pregnancy test about 7 days after your next period is delayed. This method is by far the easiest and least expensive way to test. This method can be done by yourself by going to the drugstore to buy early pregnancy test strips, or by going to the hospital. If the test paper shows two bars, it means that you are pregnant. There is another way to confirm pregnancy earlier, usually 8-10 days after intercourse, you can go to the hospital to take a blood test for human chorionic gonadotropin. If the blood test for this hormone is elevated, it also means that you are pregnant. This is one of the earliest and most accurate ways to confirm pregnancy. Therefore, if you want to know whether you are pregnant or not, you can go to the hospital for this test. However, this test is more troublesome and expensive.