Low heart rate?

Nora • Stay at home mom, 1 girl, and 2 angels

So went in for ultrasound yesterday, according to lmp I was 9 weeks, but I know I ovulate late so I was think 7+3, but they dated me at 6 weeks. Then my doctor just told me the heartrate was only 97 and shes worried about it.

Anyone else have this experience? She made it sound like its 50/50 between miscarriage and it'll be okay.