So I'm almost 42 and trying for my 1st. I have been using Clearblue advanced ovulation kit and I have been trying to figure out a pattern. I tested the last 2 days and it came up low and an empty circle and now all of a sudden today it's at a high. I'm trying to figure out how I could have went from nothing to my high which would mean I ovulate tomorrow but yet it didn't come up with any fertile days before the high so it's now a wasted month for me. Does anyone have any clue or any insight bc right now I'm confused and feel like a crazy person.