Ovulation tests!

Briky <3 • I`m 25 and my husband is 33. We got married on April 30, 2015. We had our first child, Abigail on August 28, 2016!!
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