So i went to have my ultrasound and my OB did the vaginal ultrasound and saw 2 sacs. One a lot bigger then the other one. But no baby. Then she did the other kind of ultrasound and saw my jelly bean measuring 7 weeks and a half. But she still was confused about the other sac that was the double size of the other one. So my question is if any one has experienced this before and what could it be???? I can wait until my next appt.

Please help