First time using Ovulation tests

Baby

This is my first time using an OPK. I'm slightly confused because Glow says I'm supposed to ovulate in 2 days, however my tests confuse me. It seems as though I've already ovulated? I have had sex every day for the last 4 days, what are my chances that I missed ovulation? Or did I cover it pretty well? Should i keep testing?

Back story.. i am 35yrs old with 3 teenage daughters. We have decided to have 1 last child. When I was younger, I was super fertile it seemed! However now, I feel like I'm not so much. Please let me know what you think and spread some luck for us!