Missed Miscarriage?

Christie
My husband and I just had our first ultrasound. We were supposed to be around 10 weeks. We saw a Yolk sac, amniotic sac, but no fetus had developed. They think we are having a missed miscarraige, but have to do another week of testing to make sure. This was our first pregnancy so we are very confused. Anyone else out here have this happen to them?