A little confused , can someone explain please & thank you

So I’ve been tracking since cd 6 right after my period which btw came late because I ovulated later then expected that month ...

Since cd 6 up until cd 9 I stopped cause supposedly I got my surge cd 7 which was the 15th the 5th strip down my. I know this because I’ve been putting it into an <a href="https://play.google.com/store/apps/details?id=com.glow.android">ovulation app</a> ,that I will be posting a pic of also ..

I decided to test today cause according to glow either today or tomorrow was the day . I tested & got “ another “ surge but this one is clearly positive .

So my question is did I really ovulate on the 15th ? Or was that something else

This is my first time tracking , just need a little understanding thanks ladies :)

This is the app saying I ovulate the 15th

This is today when I put the new strip