Need help with ovulation day

[Colyflower]

Hello

This is the first cycle that I've started to track properly and I'm wanting to know exactly at what point would I ovulate after an LH surge? Would it be the day after the 2 days I had the LH surge or the second day of LH surge? I can't quite work it out from the example charts I've seen.

Had LH surge on Wed and Thurs, definitely showed stronger on Thursday, did another test Fri morning it had a faint line and another Fri evening which showed no LH. So based on this when would I ovulate? Would it have been on the Friday, yesterday or would it be today, Saturday?

Just wondering if I'll still be in my fertile window today.

Im wondering the same had first + opk today after a neg one last night. According to an app I have this means I should ovulate tomorrow.

Been doing some more googling - ovulation occurs 36 hours hours after LH surge, I wasn't sure if this was 36 hours after the two days of LH surge or from the first day you get the LH surge, which is why I was getting a bit confused. I think it's the later, so based on that I ovulated yesterday and should still be fertile today.

All apps base ovulation at 14 days before next period so for this cycle I've changed it to 15 days.

We had sex at the height of my fertile window, so fingers crossed, no harm in trying again today though.