For example, with my current pregnancy, my hCG levels continutally rose, but my progesterone levels were on the low end. So,
during weeks 10-13 I was told to take 200mg of
Prometrium orally to help maintain a within normal range level. By taking additional progesterone, this had no effect on my hCG levels.
But, anytime your hCG levels are declining, it usually is indicative of a miscarriage. Sorry you are going through this. I was in your situation in March. It is tough...