Sorry for your loss hun. I am sure it could be. I had an mc on 13/12, stopped bleeding on 18/12 and got what i take to be a +opk (lines never seem to get that dark for me) 14 days later and ov type pain the day after. I am surprised myself as i was sure it would take my body a lot longer to return to normal, I am just hoping i'm right!
Good luck on your journey