Have I missed it ?

Hello I’m a bit confused , glow says I’m ovulating today ! But as you can see in this picture ( the blue red strip ) that’s from today and theirs not even the faintest line there ! I have no cm and no symptoms, I took this opk ( the pink testing strip on Thursday) and it was close ish I know it’s still a negative before everyone starts commenting , but do you think I might of ovulated then and missed it ? I didn’t check Friday or sat or sun as I wanted to save my tests for today as glow says I’m ovulating today , Thankyou