Progesterone is a hormone that plays a big part in reproduction. It's made mostly in the ovaries, and the level fluctuates with your menstrual period. There is less progesterone after menopause.

Progesterone is a hormone that supports menstruation and pregnancy. It typically rises during pregnancy and while using some birth control medications. Low levels can affect menstruation and fertility ...

Medically reviewed by Alex Yampolsky, PharmDMedically reviewed by Alex Yampolsky, PharmD Progesterone is a female sex hormone that plays an essential role in the menstrual cycle and pregnancy. Low ...

Progesterone is the main pro-gestational steroid hormone secreted by the female reproductive system. It is linked to the menstrual cycle, pregnancy, and development of an embryo. Progestin is an ...