Low hcg

Ashley

I’m 6 weeks pregnant and I’ve been having severe pelvic pain. I went to the doctor and he said my hcg is low for 6weeks. It was 645. He suspects I may miscarry. The ultrasound didn’t show much either. I went for a repeat hcg to see if it’s going up or down. Anyone else ever have a low hcg? Any positive outcomes?