The purpose of the monthly menstrual cycle is to prepare for pregnancy. Menstrual cycles vary in length and intensity. During each menstrual cycle, an egg develops and is released from the ovaries.

Progesterone is a natural hormone produced by a woman’s ovaries after she ovulates (the moment when an egg is released into the fallopian tube). Progesterone is sometimes called the “pregnancy hormone ...

Low progesterone levels may cause abnormal uterine bleeding, headaches, or mood changes. Treatments typically include progesterone supplementation or hormone therapy. Progesterone is a female sex ...

After your period ends, hormone levels especially oestrogen begin to rise again. Energy levels lift, your mental clarity returns, and your body prepares to release an egg. Expert’s Take: This is a ...