Horrible cramps a week before af

Today I am having such horrible cramps. It really hurts. I use to get these every once in a while in high school before I got pregnant when I had my period. But I would say I only had them two times but other then that I don't get cramps. My period isn't due until a week from now. My husband and I basically bd every day of my cycle. Do you think these cramps are an early pregnancy sign?