OPK question!

Kim • 33• 💍 💕• 👦🏼💙 11/8/17 • 👶🏼🎀 🌈 12/3/24 • ttc w/ secondary infertility • stage 4 endo

I am taking Vitex this cycle and I’ve been on it before, so I kind of figure my ovulation day would be sooner than usual. I started getting ewcm yesterday and felt dull cramping and it looks like it’s positive. Today though the test line is way darker than the control line. So does this mean that today is my LH surge and I will probably ovulate tomorrow? Or should I go off my first positive yesterday?