I need a little support. My periods have been irregular, so our best guess is I was around 7-8 weeks. We had a dating scan today and the dr. found a heartbeat, but it was low at only 104 bpm. He estimated that I am 6 weeks. I'm supposed to go back next week for a follow up scan. I've had two miscarriages and can't help but think it's happening again. I read a Harvard study that put the rate of fetal demise for slow heart rates at 6-7 weeks at 60%. The odds are not in my favor. Trying to stay positive but feeling pretty low.