This is my first time using OPK because I wanted to see how accurate glow was on prediction. Supposed to see my fiancé next month right around my Green Day's so wanted to make sure. Glow says today is the first Green Day so I took a test (planned to take one on all the Green Day's so I knew what the progression looked like for next month). This seems positive to me so is glow off? With lines like that (for next month) it'd be a good time for BD right?