evidence: The urine test for pregnancy is a simple and non-invasive way to determine if a woman is pregnant. It works by analyzing the levels of the hormone human chorionic gonadotropin (hCG) in a woman’s urine. This hormone is produced by the placenta shortly after implantation and its presence in the urine is a reliable indicator of pregnancy. [...] In the 20th century, scientific advancements allowed for the development of more accurate pregnancy tests. Early versions of urine pregnancy tests involved mixing urine with various chemicals to trigger a reaction that would indicate pregnancy. These tests were often performed in laboratories and required professional interpretation. [...] Over the years, home pregnancy test kits have become simpler and more user-friendly. Today, most kits use urine samples and a chemical reaction to detect the presence of the pregnancy hormone, human chorionic gonadotropin (hCG). These tests typically involve collecting a urine sample in a cup and then using a test strip or stick to apply the urine and check for the presence of hCG.