Late ovulation?

Erin • Married ❤️ Mommy to Ava Noelle 11/17/17 💜
I usually have 26-28 day cycles and ovulate around CD 13. In January I had a hysteroscopy and for some reason ever since then my cycles have gotten longer. I'm on CD 14 with negative OPKs but for the past 3 days I've been having EWCM. We've been BD just in case to cover our bases but I'm wondering if I'm even going to ovulate at all this cycle. I did start taking vitex this month so idk if that changed anything. Have an appt with my doctor tomorrow to see what's going on. Has the fertile cm, negative OPK ever happened to anyone else??