Glow not calculating correctly

R • 35 years old 💍 Married 2015. 👶🏼💙 Oct2016 👶🏼💙 Nov2019

Anyone else had problems with this. For the last 7 months my cycles have been 33 days yet Glow keeps predicting AF for 31 days. Also telling me my fertile window starts from CD 11, when if I’m on 33 day cycles would be like the week later, i think I’ve been ovulating around CD 18-21. Just frustrating that GLOW isn’t accurately predicting, am I doing something wrong?