the general guidelines for Progest are as wide ranging as HCG but here is a basic overview...
Note: I take 200mg a day of progest suppositories as a caution against MC


Not pregnant: Progesterone during menstrual cycle

Day 1-14 >1 to 1.5 ng/ml

Day 15-28 2-28 ng/ml



Pregnancy levels : Progesterone during pregnancy

First Trimester 9-47 ng/ml
Second Trimester 17-147 ng/ml
Third Trimester 55-200 ng/ml


Most doctors like to see a minimum level of 10 ng/ml during the first few weeks of pregnancy. If a woman has low progesterone levels this can be an indication of a threatened miscarriage. If you are concerned about your progesterone level talk to your doctor for more information.