Help me out ladies!

Today's the big day, peak ovulation (not opk confirmed, just going by glow estimate) and this morning I was lightly spotting! I don't normally have this unless my period is starting. Seems like the spotting has stopped now though.

I'm just wondering if this could be a good or bad sign? Could this be from a strong ovulation? I doubt its implantation bleeding, but I guess it could be. Just want some opinions/other people's experiences/info? Thanks!