Opks on glow

Lauren

So this is my first month using opks and I’m a little bit confused, I have been uploading the pictures to glow and I apparently got my peak 3 days ago but the test line didn’t look that dark but I kept testing anyway just incase and tonight when I took one the line is a lot darker than the rest of them , it’s the darkest ever got but when I uploaded it to glow it says “it’s fading!, do the dance for the baby!”

But it’s so dark and it’s a lot darker than the one when I apparently got my peak!

What do I do? Do I presume that with it being so dark that this is my peak or go with what glow is saying?