HCG Count

Florence • Expecting baby #1 Dec 23!
Hi,
​I know I conceived the week of 3/24 and the first day of my last period was  3/14. So... I'm really only 3 weeks along, but it's 5 according to how the doc tracks. I was just told that my HCG count was 700 this past Wed. Is that normal at this stage? I had a MC last year and admit to being really anxious about this pregnancy. I'm going to have an early ultrasound next week and will be terrified if I don't see the heartbeat. A bit if PTSD going on... thanks in advance and happy Friday!