Miscarriage then positive test

Patient: Naturally miscarried chemical pregnancy 6 weeks ago. on the 3rd week, hcg level was still 950. today took home preg test and tested positive with 1 dark line, 1 a little faint. could this be new pregnancy or just hormone residue from lost pregnancy?

Symptoms: Miscarriage then positive test

Images:
Miscarriage then positive test-1

Doctor: