Ok ladies, I went in to my first ultrasound at 4 weeks 5 days, only early because they thought I was further along then what I was, the ultrasound tech said she saw what she thought were two sacs but was hard to say if twins because it was to early, went back again at 5 weeks 5 days for another ultrasound and could see the two separate sacs and what looked like two babies but only one with heart beat.and beating to my heartbeat, I went back again at my 6 weeks and 5 day for another scan and the tech said she should be seeing more then what she was, so they drew blood to check my hcg levels and I go back Thursday. the tech and ultrasound tech mentioned it could be a blightened ovum and my body just hasn't rejected the baby (s) yet,, I'm really worried and praying my baby's a just being stubborn and is hard to see them right now. praying my levels go up big time as this is our first pregnancy and we are soo excited. any one else in the same situation? ??