How to tell if you have low progesterone
The most noticeable manifestation of low progesterone levels is irregular periods and short cycles, but sometimes symptoms like premenstrual spotting may appear. Other symptoms may include mood changes, sleep disturbances, anxiety, and depression.
Progesterone affects the regulation of fluid levels in the body. That’s why weight gain due to fluid retention and breast tenderness are possible with decreased progesterone levels, although this is rare.
In a healthy body, estrogen and progesterone naturally balance each other out. Having low progesterone causes estrogen dominance, which leads to an overgrowth of the lining of the uterus (endometrium), which in turn causes heavy periods.