Opks can someone help me please

Lauren • 30. Partner 34. I work as a domestic abuse support worker in a women's refuge and my partner is an independent haulage contractor for CEMEX. We have 2 children. William 9 & Georgia 1.
So I thought i ovulated Friday. I had posted a pic of Opk. But I've just taken one and I'm sure it's positive. Bottom one is from tonight, 5 mins ago. The one above it is this morning. And the three above that are yesterday. And above that is two from Friday. Am I ovulating today???