It is a hormone secreted together with estrogen in women. It is when it is below normal levels. Progesterone is produced mainly in the second half of the menstrual cycle and also plays an important role during pregnancy. Low progesterone may be due to many factors. The most common causes include lack of ovulation and polycystic ovary syndrome. Thyroid problems, excessive stress, malnutrition, excessive exercise and some medications can also […]