Positive Test after Miscarriage

Hi Ladies,

So I had a miscarriage on 01/12 I was almost 8 weeks...I took the HCG blood test on 01/13 my levels were 20,000 then I took another HCG on 01/25 my levels was 148....fast forward to today which makes 6 weeks since the miscarriage....still no period and I took a pregnancy test today ... the line is super dark is it possible my HCG is still showing from the miscarriage?