Cramps w/ clomid??

Ryan
Hello I took clomid on my 3rd cycle for the remaining 5 days about 2 weeks ago. I was told to have intercourse on my 10th cycle day for a week which ended Sunday. My period isn't due until next week but I have currently been having mild cramping since Sunday. Is that normal on clomid? Or could it be because I'm expecting my period next week?