I've had so many weird dreams! I dream every night and usually remember them for a day or two unless they really stuck out. I had one that I was having 6 boys on an ultrasound and the other 2 in there we couldn't see the sex. It's just pregnancy dreams. I would try not to worry so much or you could stress out. But it's not just you, I know many who get them.
I haven't got the dreams but I do worry the same as you. This is my first pregnancy as well so I think it's just us focusing on the negative because it's such a scary concept. The best thing we can do is just try not to worry, continue taking care of ourselves and to hope for the best. If that means simply waiting from doctors visit to doctor's visit to find out if the baby is ok then that's just what we have to do as new expecting mothers. Hope this helped.
We have really weird dreams when we are pregnant and I have no idea why. I had one that they were making my pregnant friend swallow a toy car so her babies had something to play w in her uterus. So weird. But dont let them get to you and if u are really worried just go to your doc. That's what they're there for :)
I guess its just me... :\