Is this my positive OPK finally!!!?

Cycle day 18 i really think this is my positive.... if it’s not it is SOO close. Glow is predicting me to ovulate tomorrow. This is the darkest test I’ve gotten I’ve been testing since cycle day 11.

Update. Took a test today thinking it would be my pure positive since yesterday was very very close. Today’s was lighter than yesterday :( what’s going on..? Did I miss it...?