What is a pregnancy test? A pregnancy test is a tool that can quickly detect whether a woman is pregnant. It is a urine-based progesterone test strip that usually includes a test strip and an instruction sheet. Before taking the test, women need to drop urine on the test paper. After a while, observe whether color appears on the test paper. If a color bar appears, it indicates that the woman is pregnant. How to use pregnancy test strips, the first step,