Hi! I had my confirmation ultrasound today according to my last period, I should be 7 weeks 4 days. But the baby was measuring 6 week and 1 day with a heart rate of 108. The doctor didn't seem to be worried he told me this happens often. I can not help to be worried though. I used and ovulation kit and I know when my LH surge was. Can anyone else tell me if this has happened to them and what their outcome was!?