I need some help, yesterday (and all month long) the <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> had said that my ovulation day was today, but when I checked my app today now it’s saying ovulation day was yesterday. I thought maybe I was confused but I always screenshot the month so when I checked the picture in my phone—I was right.

I don’t know why the date changed? I didn’t change any data in my phone except yesterday I took an ovulation test and it was positive so I uploaded that.

Ideas? Thanks!