The urine test kits that can be purchased at most pharmacies are very much like the ones used in doctor's offices and clinics. If you follow the directions carefully they are very accurate. Usually they will be positive about 2 days after your menstrual period was due if you are actually pregnant. If the test is positive it is about 99% accurate. If the test is negative you may not be pregnant or you may just be too early in pregnancy for the test to show.

Blood tests for pregnancy are almost 100% accurate and can diagnose pregnancy even before the woman misses her period. These tests can be obtained by a doctor's office or clinic.