OPK fest questions

Caroline

I’m confused about OPKs and keep getting conflicting info. I’ve been testing all week - yesterday my test line was darker than the control line, today they were the same color. Does a positive opk mean I’m about to ovulate? What’s the window? Or does it mean that I may already have? I’ve been checking cervical position too and it doesn’t seem quite as high, soft and open as I’ve noticed in the past yet. Cervical mucus was higher earlier this week - Tuesday and Wednesday. Thoughts?