Sorry to hear that. When I had a miscarriage, my levels dropped very drastically over 3 days (from about 2000 to almost 0).
How did you go? I hope you have good news
I'm surprised if he had been concerned for that amount of time why he didn't put you on progesterone.
I had five MCs, and all of them: dr tell me every thing is great, dont wory, then they tell me: it stop prograssing. You have to wait untill it comes out
Did you have an ultrasound? How fast are your levels dropping? The chances are not in your favor here, but i did hear cases of a small drop in the hgc level happening when one twin dies, and the other twin survives. So sorry you have to go through this.