How long did you test positive after miscarriage

Hi- sorry if this is the wrong group for this.

TW- miscarriage

I’m currently going through a miscarriage, I’d be 5.5 weeks, I started bleeding two days ago and I tested today and still got a very strong positive. I know it’s normal but my previous miscarriages the line got lighter not darker. I’m just wondering if you’ve been through this how long did you test positive for? I want to try straight away once the bleeding has stopped but would be upset if it was falsely showing positive when it’s just hcg left from this pregnancy.