Ovulating?

Shaylah
I have a very short cycle and I'm supposed to ovulate 2 days after my af ends so I started taking opk last day of period. Got a faint line the first day, 2nd day no line, 3rd day a faint line again, today the 2nd line was darker but still not as dark as the control line...I'm just feeling kind of crazy and these lines are killing me.