Feeling hopeless.

Sorry for the long story, but I need to talk to someone. Back in April I had a miscarriage, it was awful and we tried so hard to get pregnant and it was taken from us. On November 27th I found out I was pregnant again. December 5th rolls around and I start having heavy bleeding and thought this is the end. Went to the ER and said everything was fine and they saw not one, but two babies! We were excited! From December 5th to the 25th I had light bleeding that the doctors didn’t think was anything serious since I had no cramping and my ultrasound looked fine. I’ve had 3 ultrasounds since then and the doctors can see the sacs, but can’t see anything in the inside. No yolk, no baby, nothing. They said I’m in a “limbo” and they just have to wait and see. I’ve just been freaking out since, doctors aren’t much help and I’m terrified this pregnancy isn’t going to last. I just don’t know what to do anymore. I have a tilted uterus and the doctors said that they should be able to see something by now regardless of the tilt. I’ll be 9 weeks on Friday. Any advice or help would be great. Thank you.