Progesterone is a hormone produced mainly by the ovaries in females, particularly after ovulation. It plays a crucial role in regulating the menstrual cycle and preparing the uterus for a potential pregnancy. If fertilization occurs, progesterone helps maintain the uterine lining, supporting the developing embryo. In addition to its role in reproduction, progesterone is also involved in other bodily functions, such as influencing mood and immune response. It can be found in various forms, including synthetic versions used in hormonal therapies and contraceptives, to help manage different health conditions.