Does EWCM usually come before of after ovulation?

Brianna

I got EWCM today for the first time. OPKs have all be negative and I’m testing it again this afternoon. According to Ovia and Glow today is supposed to be my ovulation day, but when I put my CM into Ovia, it changed to making Monday my O day, despite having a negative OPK. 🙄🙄 So now I’m confused. I thought EWCM was a sign of ovulation coming, not leaving?