predicted ovulation but negative opk?

Mamatoruben • 💙💗💛💚
I've woken up with cramps, also keep going to #2 often. (Soft stools) and I have sore boobs! 
I have wet cm.
Could it be I ovulated already? Or I'm ovulating soon? My next period is 8 of November.
I have a cycle of 40 days