Progesterone is a steroid hormone naturally produced by women’s ovaries and plays a pivotal role in the menstrual cycle and pregnancy. It helps regulate the menstrual cycle, prepares the uterus for pregnancy, and sustains the pregnancy.
During the menstrual cycle, progesterone levels rise after ovulation, signaling the uterus to thicken its lining in preparation for a potential fertilized egg. If fertilization does not occur, progesterone levels fall, causing the uterine lining to shed, resulting in menstruation.
