random cramps?

Brittany
So me and my Fiance had sex on the 19th 2 days before ovulating. My period isn't till march 13th but I've been cramping. Not bad to where im balled up in the fetal position like on my period. But enough to where I can feel it. Could it be my period trying to start early? It's been going on for about 2/3 days. Thanks in advance ❤️❤️