Does coffee/caffeine affect menstrual period cramps?

I usually hardly ever get cramps, and when I do, they are bearable. I never really drink coffee either. I got my period last night, and this morning I had a coffee with a little milk and one sugar. Now. all day I have been experiencing the worst cramps ever..to the point I feel like I am going to vomit and I am just in the worst pain. Is this because I drank coffee? What can I do?