I've been tracking very well in another app. I don't use ovulation tests because honestly, hubby isn't ready yet and I don't want to scare him or make him feel I'm trying to corner him or trick him. Plus they're so expensive so I usually rely on CF to tell me where I am in the cycle.

But recently I've noticed my app tells me my ovulation prediction is CD 24-29 (between those dates different months) and my fertile window is 1.5 weeks before that predicted date.. I have no idea why it chooses that far out... Is that possible?