So I'm using both Glow and another TTC app. Most months they are synonymous with each other in when I'm in my fertile window and when I'm due for AF. However this month they are NOT EVEN CLOSE. Both updated and reconfigured everything and they just didn't agree. Glow said I was originally supposed to see AF Monday so I marked the late button and it updated to today. AF still not here and there's no signs she's coming today. So I marked the late button again and it just updated to tomorrow. However my other app says I'm due Saturday. Do you all think I should test or wait to see if I'm late with the other app as well?