Thanks for the replies everyone!

The cramping eased off by morning and I am just dismissing it as ovulaton, or just some side-effects of the Clomid. Doc wasn't worried since it passed.
I go in on the 22nd to check my Prog levels so we'll see if it worked. -->Fingers crossed!!
I guess it just startled me since I was not having AF on my own for awhile and even when I had them on the pill, they weren't that crampy. Heavy, tender, and unpredictable, but not really crampy like that night.
~Kimberly
Thanks for the baby dust!!!