This ultrasound says I'm 9 weeks 2 days by my last period, but by my ovulation day I'm 6 weeks 5 days. Go back in two weeks for another ultrasound. But why does my ultra sound look so diffrent from all the other? He couldn't get any heart beats but he said that was norm. Most of the time it's around 9 to 10 weeks for women like my self on the hevay side anyway.