hcg levels on thursday 08-20-09 : 42,854 hcg levels on saturday 08-22-09 : 60,035 so they didn't quite double, but doc says she is happy with the way they are coming up. however, she has us getting an ultrasound tonight. we should be 7 weeks along so i'm hoping to see a heartbeat. i'm so nervous. hope all is well.