I am, according to calculations, 7 weeks today. I went yesterday for an ultrasound to confirm that there was a heartbeat and that the baby was in the uterus. During the ultrasound they found the sack but there was nothing inside, not even a speck. My sac was measuring 6w6d but like I said there was no baby in it from what we could see. They sent me home with more questions than answers and I still don’t know what’s going on. Can anyone give me some insight. I am a first timer and I’m freaking out. I went home and looked at my calendar and it could be possible I’m only 5 weeks closer to 6 weeks and not 7. Would that make a difference with the sac measuring what it is?