cervix Checkers

I know it's not a great indicator but I'm so confused. Normally it says a cervix remains low and hard after ovulation. Mines been so high I can barley find it. I'm supposed to start period November 5 and today is the first time it's low. Normally it's tilted with opening towards back when it's high. Today with it being lower the opening is actually reachable and more forward facing. Pregnant? Period? What's going on?!