Glow is wrong!

So I know my body and I am a consistent 31 day cycle person. Well I'm pretty sure that according to my bbt I ovulated on the 14th or 19th day of my cycle(it's kind of obvious on my chart) well Glow marked my ovulation on day 24(37 day cycle) which is not right! I know that I should be starting AF tomorrow. With that being said does my chart look promising for this month?! Shouldn't my bbt be dropping now since I should we starting tomorrow and it hasn't yet?!