Has anyone ever had their progesterone level decrease during early pregnancy? I am 6 weeks pregnant and my levels went from 13 to 7 in just under two weeks. My hGC levels increased, but not the way the doctor would have liked. I had an US today and there is a fetus measuring just over 6 weeks and a heartbeat of 150 bmp. My doctor has put me on a crinone cream for 2 weeks and then a follow-up US. My doctor is "cautiously-optomistic" but I have miscarried before and feeling like it will happen again. Has this happened to anyone?