7 weeks and 5 days but measuring at 6 weeks

Sasha
Hello everyone I don't post much on here but I just needed to vent this morning. I went for my first ob appointment yesterday. I had a miscarriage earlier this year in June. My doctor assured me and my husband that the likelihood of me miscarrying again was slim. We go for the ultrasound and the ultrasound tech stated that I was measuring at 6 weeks. Of course I was disappointed. There was a heartbeat though. She measured it twice as we couldn't heart it but it was 130 and 107. My husband is trying to stay positive but me I'm just a little worried. I go back in 2 weeks for another ultrasound. Has anyone ever had this happen to them and everything turn out to be just fine.