clomid symptoms?

those who have gotten pregnant on Clomid, how did you know that you were before you decided to test? what symptoms are/were you feeling/having?
I didn't feel symptoms during taking Clomid until three weeks after my last dose & im in a between, stuck part.. af is due in 3 days and I'm not sure if my symptoms are from the Clomid still or from af but before clomid ive never felt pains or cramps like now... any coment helps! thank you..