First time using OPK

🌺Lacee

Glow says tomorrow is my last day to ovulate. Why I didn't buy these sooner is beyond me. Anywho, is this a flat out negative? Can it detect towards the end of ovulation or should I assume glow isn't quite accurate and I'll be ovulating soon?

I sort of feel like a dummy for asking but I know all you wonderful ladies will be kind enough to get me a bit more educated in this department. Thanks in advance 😉😆