Concerning Ultrasound

Shelley
I went in for my 1st Trimester ultrasound and screening, was told by the tech that everything looked great. NT was good, brain and stomach had formed perfectly, heartbeat of 164 bpm. She pointed out all of the fingers and toes and the cutest pair of lips you could ever imagine. I left the appt SO excited, we were finally going to announce our pregnancy and I was so relieved to know our baby was doing so well. 30 minutes later I get a call from the dr reviewing the ultrasound to say that she wasn't able to detect a nasal bone in the images she saw, and that she's referring me to a specialist for further testing. Of course that was Friday afternoon and I have to wait til Morning to try to make an appointment. This has been the most unbearable weekend, I can't help but assume the worst, and I can tell that I've started to detach. I'm starting to give up on this baby. I don't touch my belly in the mornings. I don't think about it as our baby.  I don't picture our future. I don't picture anything. 
Has anyone been in a similar situation and had positive results? I need to hear your good news, please.