Cycle after Miscarriage

Sidney • Married • 👼 12/30/19 • 🌈 Rainbow baby 12/2/20 • Baby #2 1/19/22 • Baby #3 due Oct '23 •

I miscarried on 12/30/19. I have been waiting for my period to return. I had very minimal dark spotting last weekend but it never turned into anything. I have taken a few pregnancy tests and they are all negative. But now today I took an OPK and it was very positive. What is going on?? Has anyone else had this?