Progesterone is an endogenous steroid hormone that aids in the implantation of the fertilized egg in the uterus. It is produced by the adrenal cortex as well as ovaries and testes. It is also secreted by the corpus luteum and the placenta and is responsible for preparing the body for pregnancy and, if pregnancy occurs, maintaining it until birth. Estimating progesterone levels is important in assessing the probability and risk of ectopic pregnancy, determining the cause of infertility, and diagnosing abnormal uterine bleeding. Low levels of progesterone are a marker of incipient pre-eclampsia/toxemia in a pregnant woman. Avail of the home collection services for this test at an affordable cost.