ovulation cramps?

Je
Has anyone ever experienced ovulation pains? Also known as mittelschmerz. I'm due for AF in 9 days & I never usually experience cramps any earlier than day one of AF, ever. I noticed it last night very faintly for a couple hours on & off, only on my right side. I checked CM & it was egg white clear.  It says online I ovulated last week though but could it have been wrong? 
Has anyone else experience this?