Ovulation

According to my normal cycles, I assumed I ovulated on 12/2. I have ovulated on day 13/14 every cycle for the last 6 months. However, this month, I have had tons of ewcm from 12/1-today 12/5. I also have low back pain and menstrual-like cramps. What could be going on?

Am I ovulating late?

I'm so confused.

I swore I was about to ovulate on the first, and now I could swear I'm ovulating again.

I'm probably over thinking it. But I want to know why the heck I'm having cramps and back pain at this point in my cycle!

Opinions & thoughts appreciated.