TTC after miscarriage

Has anyone ever had HCG hormone still present in their body over a month after an early miscarriage? I had a miscarriage (6 weeks along) on January 7th, bled through about January 13th. Thought I saw a faint faint positive on a test today... so almost 7 weeks since my miscarriage. Anybody else still have HCG for that long?🙁🙁🙁