The round tablet in a pregnancy test is a desiccant that is used to absorb moisture and serves to extend the shelf life of the pregnancy test. The round pill in a pregnancy test is similar to the silica pouches found in food and is not an emergency contraceptive. And the chemical is toxic and does not prevent pregnancy. A pregnancy test is a tool used by women to detect pregnancy by testing the level of the hormone in a woman’s urine due to the increase in HCG in her body when she is pregnant. Before using a pregnancy test, it is recommended that you should look at the shelf life and use the pregnancy test properly under the guidance of the instructions. In addition, be careful not to take the round tablets in the pregnancy test, if the patient suffers from discomfort such as abdominal pain after taking the test by mistake, it is recommended to consult a doctor in time to take the correct treatment measures.