M2A, just caught up with the thread and let me tell you my story about scans - I had one about 5 weeks, there was just sac, then I had one at about 6 weeks because of the bleed - there was a sac and a yolk sac, they couldnt see the baby at all. But at 8 weeks they could see the foetus and the heartbeat and everything, so I think your scan was normal. I know it's hard not to worry, I have been worrying myself sick because my symptoms are gone now.