Cramping 😕

I'm not due for my period for another 9 days, I'm 3 days past my peak day for ovulation. We've been baby dancing but not last night or today and I've woken with mild cramping on the left, not really period pain, was able to jog through it this morning. Tonight it's gotten worse. Feels more like a full/pressure feeling mostly on the left and hurts with the jolt as I take a step. Has anyone else experienced this and might know what it could be?