Help please I'm new to testing!

Mermaid Momma 🧜🏻‍♀️ • Mama of three 💙💞💙

So I'm new to opk testing - does this mean that I likely ovulated on day 13?! The lines were darker on that day but have gotten lighter since.... I don't have a picture of my updated log including yesterday's test but the second line was very light yesterday. According to my glow log this is green week for me! Appreciate anyone's insight ;)