Cramping while ovulating?

Carine
My ovulation week started Sunday 3/1 and I've been having sex everyday (a few times a day) since then. Today 3/5 I'm at my higest 33% peek and have crazy cramps. Almost like period cramps? I've been super tired and nauseas too..
Could this mean I might've gotten pregnant sometime earlier this week or are my hopes just high?