What is the pill inside a pregnancy test?

A pregnancy test typically contains a small pill, called the detection strip or absorbent strip, that is coated with antibodies that react to the hormone hCG (human chorionic gonadotropin) present in a woman's urine when she is pregnant.

When a woman urinates on the detection strip or dips it into a urine sample, the hCG in the urine binds to the antibodies on the strip. This triggers a chemical reaction that results in a color change on the strip, indicating whether or not the woman is pregnant.

Most pregnancy tests also have a control line that appears to show that the test is working correctly. If the control line does not appear, it may indicate that the test is faulty or not used correctly.

It's important to follow the instructions provided with the pregnancy test kit to ensure accurate results. If the test is positive, it's recommended to confirm the results with a healthcare provider.