OPK fertile days

Julie • Pregnant with our rainbow baby! 🤰🏻🌈🥰
Hello ladies! It's our second month TTC and first month using OPK. I'm on my second day of my fertile week and decided to try an OPK. It says I am not ovulating, when should I test again? Glow has my highest percentage to get pregnant on the 21st. Wondering if I should test then...? (We have BD 4th day in a row today.)