Random cramps

I had unprotected on Sunday (married so pregnancy wouldn't be a big deal) and yesterday and today I've been getting menstrual like cramps. I know it happens to me during ovulation (I'm not ovulating anymore) and my period isn't for about 10 more days. I usually cramp during pms but I'm not right now (I can always tell when I am)
I know that even if I were to become pregnant that right now it would be so early some say I wouldn't even technically be pregnant yet And that I wouldn't be having any symptoms yet, but could the cramping be a sign?? I know I just have to wait to take a test but I don't now why I'm getting cramps. I'm not stressed or anything.