A pill in a pregnancy test is mainly a desiccant, which is usually used to protect against moisture.
A pregnancy test is a simple and convenient way to determine if you are pregnant, mainly by detecting the level of human chorionic gonadotropin in your urine.
However, if moisture or expiration date occurs, it will render the test ineffective and will not be able to accurately detect pregnancy. Even in the air, moisture can be avoided, so a desiccant is often placed inside to absorb moisture to extend the validity of the pregnancy test and ensure the quality of the test.
A pregnancy test is an early method of roughly estimating pregnancy, showing two bars is positive, at this time to go to the hospital for blood HCG test and ultrasound, to determine the quality of the embryo and whether the intrauterine pregnancy.