Pregnant after mc?


I had mc at 5 weeks on February 15. Bleeding lasted a week. I’m pretty sure I had positive OPK on March 6. We had sex on March 3 and 7. Today I get these faint positive pregnancy tests.’

I had them this light when I had that mc. So I’m nervous. My question is, I have PCOS but usually my period comes on days 30-35. Do you count the day you start bleeding during miscarriage as first day of cycle? Maybe I’m testing too early? Thanks in advance for any responses!!