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In early pregnancy, this hormone helps to ensure the production of two other necessary hormones, estrogen and progesterone.

This hormone helps to ensure a steady glucose supply and availability of amino acids for fetal growth and development.

This steroid hormone promotes maternal uterine and breast tissue growth, blood flow through the uterus and uterine contractility.

This steroid hormone helps protect fetal tissue from being rejected by the mother. It also helps to keep the uterus “quiet” during pregnancy.