Opks can someone help me please

Lauren • 29. Partner is 33. I work in a women`s refuge & he is a builder/roofer. We have 2 kids. Will 7 & Georgia - baby
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???