When the heck do I ovulate?

Emily

Yesterday I had a positive OPK with the test line just as dark as the control. I considered that my peak, that it wouldn't get any darker and I assumed I would ovulate today at some point. Then today, I took a test that had the test line WAY darker than control. Do I count yesterday as first peak, or would I count today as my peak and assume I ovulate tomorrow?

First pic is my test from yesterday, second is my test from today.