Had a ultrasound at my ob and I was 6 weeks 4 days with a heartbeat of 113 ! Well this passed Sunday I would be considered (8weeks) I went to the er because of dehydration and had a ultrasound and the tech said I'm measuring 7 weeks with a heartbeat of 146 but according to what my ob said when I was 6 weeks and 4 days I would have been 8 weeks that day should I be worried :/ Also found out I have a subchorionic hematoma and maybe have some bleeding but should heal on its own but worried since it makes my risk of miscarriage higher