It looks like a counterbalance to E2, progesterone increases when E2 is low.
@Snayaz your E2 is in a good range 100%, but I think your body is compensating with progesterone increases attempt to create more e2 via ESTRONE (E1, being the precursor for E2).
Adrenal glands produce progesterone, so it could be some overtimulation of adrenals as well in some cases. Tumors can increase production of progesterone in the adrenals too. But not sure if that’s relevant for you.
This is common with EQ and NPP together - chuck in some aromasin and you have a lower E2 > the body will increase progesterone up to create more E2 as it may be needing some
More for general function. I have said this before. The body likes predictability. It wants homeostasis. By using the different combos we use we throw so many things out of whack causing 1. Side effects 2. Hormone adjustments within the body to compensate and find homeostasis 3. Side effects of the adjustments in this case will be changed brain chemistry, total metabolism (especially thyroid) and overall fatigue. Being on the heavy side will cause your body to work overtime, which may point back to the adrenal glands working more then what they should.
A lot of things it can point too, but 100 it has something to do with the cycle your running and the balance the body is trying to obtain as it feels the shifts.