Glow Aunt Flo Predictor

Hey ladies! For me, AF usually comes around the same time every month, maybe a day off before or after when it's expected. Anyways, my lovely glow app predicts when AF should arrive and they've been relatively spot on. This month I'm about a week late from Glow's prediction and I'm assuming it's safe to get my hopes up since we've been ttc for months. How about all of you? Is Glow's predictions usually correct or should I still be expecting AF? Thanks for the input! 😊