Pregnancy testing is based on an early increase in which hormone?

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Pregnancy testing is based on the early increase in human chorionic gonadotropin (hCG) hormone, which is produced by the placenta after a fertilized egg is implanted in the uterus. The level of hCG increases rapidly during the early weeks of pregnancy and is detectable in urine and blood samples, making it a reliable marker for pregnancy testing. Options B, C, and D are not indicative of pregnancy.

Pregnancy Testing Is Based on an Early Increase in Which