Is my hcg low? (675)

Brittney

The first day of my last period was 3/9, but my cycles are a bit long so I’m estimating I’m just shy of 6 weeks pregnant. On April 22 (5 weeks) my hcg was at 675. I’ve had 5 miscarriages, but this is the highest my hcg has ever been and yet I still can’t help but worry. Is that low? Has anyone else had lower levels of hcg and went on to have a successful pregnancy?