I had a chemical in November 2015. I got pregnant again this January. I've had spotting 5 through 7 weeks. At 7 weeks 6 days I got an ultrasound and no baby only a sac. I was told to come back in a week and I'm so nervous I'll be told I'll miscarry. I'm suppose to be 9 weeks when I go to this ultrasound. I'm so scared.