A pregnancy test is used to determine if a woman is pregnant. Indicative markers are found in blood and urine, and pregnancy tests require sampling one of these substances. The first of these markers to be discovered, human chorionic gonadotropin (hCG), was discovered in 1930 to be produced by the syncytiotrophoblast cells of the fertilized ova (eggs).
The most accurate pregnancy test is the one that can detect the human chorionic gonadotropin (hCG) level of a woman; when the human chorionic gonadotropin level is high, the test starts to read positive. There are different types of pregnancy tests like first response early result, Clearblue rapid detection, clinical Guard hCG pregnancy test strips, pregnant LH ovulation, pregnant LH test strips, first response triple check test, etc.