Ladies I have a question about my cycle this month. Mainly wondering if anyone has had this happen.

I miscarried December 20th. Ever since I've been getting a positive opk on CD 13 or early am CD 14. My question is... this cycle, I got a postive opk with clearblue advanced on CD 14 (Monday) and I didn't get a postive with my easy@home until CD 16 (Wednesday)

Typically they are on the same day, maybe different times but definitely same day.

I am confused on when I would have ovulated? My period is usually 13 days after my postive opk so will that also change this cycle? I'm lost.