Ovulation tests!

Briky <3 • Turning 30 this year 🙈 trying for our 3rd 💚
When should you take them? This is my first month TTC #1 and I really haven't read too much in it. So just wondering when to take an OK. My calendar says green for today but only 11 percent. Should I test today or wait till Monday when it's at 22 percent or something like that! Thanks