Has your app ever changed?

Ashley • 08-11-15 💙👶🏻CRJ 03-15-18💜👶🏻EAJ 01-22-21💚👶🏼
Mine just randomly changed my ovulation date, put it almost 4 days earlier. Luckily we've been baby dancing regularly ish, so I should be covered. But has that happened to anyone?