Hello, I went for my first ultrasound on Thursday. According to my last period I was 8w 4d. Well my ultrasound showed the baby at 6w 5d and no heartbeat:( I'm going back Monday for another ultrasound, but I'm worried in the meantime. I know for a fact when my last period was, but my cycles are irregular.. could that have set it back that far? Also, he said there was another sac but it was irregular in shape and empty. Has anyone been in this position? I'm already preparing for the worst. I just can't keep my nerves calm until I go back:(