Clomid Withdrawal?

TMI WARNING:

AF this cycle was very light and short.  I don't know that I would even call it a regular period.  In fact, I never had any red bleeding, but a couple of days of brownish yuck and that was it.  Today is CD 7 (I had to check ff.com since I'm not paying attention!) and I have period-like cramping every time I go to the bathroom or have sex.  Earlier today, I had some without anything proceeding them.  I have a feeling that I had some in the night, as well, because I dreamed about going to the hospital with the cramps.  Anyway, I don't know why I'm having these pains, but they are very annoying and...painful.  I usually finish Clomid on this day, so maybe my body doesn't know what to do with itself.  I just hope it stops soon.