Miscarriage?

B • 28. 23 months TTC baby #1. Rainbow baby girl 8/19/20 💕💕💕

So, is it safe to assume this is a miscarriage happening? About 4w6d. Pretty intense cramping off and on all day. Have been bleeding like this with some clots in it late afternoon/evening.

Had a quantitative HCG drawn today before I started bleeding because I was worried about my BFP turning into a BFN a week later...