Any thoughts please? Any help? Anyone else?

I got my BFP last Wednesday, by Friday I was spotting light pink when wiped. Saturday I was bleeding heavily and passed a clot which hospital confirmed was the ‘pregnancy’. I Went to the hospital on Sunday they took bloods and the following day I had a scan. (Nothing viable on the scan)

I got my results my levels for HCG were only 58 and they said I was having a miscarriage but passed most off it already.

Well today I had my bloods done again and my HCG level has rose only ever so slightly to 65. Has this happened to anyone else before ? So confused 😫