I know how hard this must be for you. I also had to go to see a specialist because I had a rash of pregnancy that has a high mortality rate for fetus. In my case every turned out fine and I now have a beautiful two week old little girl. I just want to encourage you that going the specialist and having a stage two ultra sound is actually a very good calming thing to do. In my case the specialist was amazing. Right now you can't know what to do because you really have no idea what you are facing, once you go to your specialist you will have a better idea of what the possibilities and then you can do some study up on cases like yours and know what to do next. I really hope the best for you.