Ovulation Spotting Question: Last month I ovulated on CD 17, verified by temping with a positive OPK…

Ovulation Spotting

Question: Last month I ovulated on CD 17, verified by temping with a positive OPK on CD16. I have decided not to temp this month because it was stressing me out. I have been using OPKs twice a day with no positive and I'm CD 16. That being said - I had blood tinged EWCM when I got up this morning (no BD yesterday). Does that mean I have already ovulated or am about to?