First time tracking! Help

So I've been tracking my opks. According to the app cycle day 19 (17th June) I was ment to ovulate but opk was negative. The strongest test I've had was on the cycle day 17 (15th June) all the other tests since that day has been very faint as you can see. Can someone explain please? I'm really confused! All I want is a baby of my own 😭

Edit: I've been testing 2 times a day (when I remember) but I only record the strongest one out of the two. I've currently run out of test so it's going to be a late recording tonight.