Pregnancy tests are among the many products available at The Online Drugstore in our pregnancy/personal care section. These tests are from well-known manufacturers including First Response, E.P.T. and Fact Plus. Pregnancy tests are easy to administer as they are simple urine tests to show if a woman is pregnant. These tests are used to detect the presence of human chorionic gonadotropin (HCG) that is released when a fertilized egg attaches to the lining of the uterus. The only time HCG is found in woman’s body is if she is pregnant. You must follow the instructions on the packaging to ensure accurate test results. If done correctly, pregnancy tests are accurate about 99 percent of the time but this accuracy can be diminished if the test is not used correctly of if the expiration date on the test has passed. Pregnancy test results are rather straight forward, a positive result means pregnant and a negative result means not pregnant. These results are displayed on the test stick in words, plus or minus signs, or lines depending on the test.