Clomid Causing Cycle Changes?

Lilly

This was my first month taking Clomid. My pregnancy tests were negative and I was expecting my period. I usually have a 27 day cycle but it was 32 days this month, no big deal. But the first day of my period I always have bad cramps and really heavy bleeding. This time I have the cramps but I'm barely spotting at all. Is this normal?