Please someone advice me what im doing wrong.

I could of sworn i was fertile a week ago. Had all my usual symptoms, EWCM and positive opks. But for the 3 last days I'm having positive opks, mild cramping and super irritated. Am I using these wrong? Is it possible to ovulate twice? I'm so confused. This is a pic of my opk I took 10mins ago. The pic with the 3 opks is from Tuesday.