I went in for an u/s at 6 weeks, 2 days and they saw 2 sacs, but weren't sure there was anything in them. I went back at 7 weeks, 4 days and there were 2 strong heartbeats. I think the u/s tech wasn't as good as my 2nd one either. You never know what will happen, but 6 weeks is so early. I wish they ...