Currently when I access the app, the main page displays my ovulation window as a certain time within the month and tells me what my percentage of getting pregnant is, which is great. However, if i click on the 'Period' button in the right hand corner and view that calendar, it displays a different ovulation window. It's quite annoying as I use this app specifically to see when I'm supposed to be ovulating to know when I should be more careful while having sex so that I DON'T get pregnant. If one calendar says I'm ovulating one week and the other calendar says another, this can't be reliable enough. Maybe I am doing something wrong?? Or maybe I just need to track my ovulation via another app.