BFP while on “period” ?

CJ

I’m currently 10 dpo according to very clear OPK. I got my period on Sunday (typically have a short LP). I haven’t felt right so I decided to take a FRER last night and tonight - both BFP.

Am I miscarrying? Chemical Pregnancy? Pregnant? What’s happening?

**It’s definitely not implantation bleeding. Bright red with a flow**