Progesterone is a wonderful hormone and especially important for women and their cycle.
It stabilises the endometrial lining and helps with conception and implantation.
In women progesterone can calm us and helps with cell division.
These are quite common and may result in:
Short cycle between periods, or a longer period
Heavy Clotty periods
Depression or anxiety
Lack of breast milk during lactation
I have found in my clinic that many women drop progesterone, especially if they are busy, are run down, have excess estrogen or are burnt out.
This is actually not very common and usually means someone has an issue in their gut or with metabolism