Ovulation Tes LH Surge

Aneta

I track ovulation on here and it stated expected to be today. I had no LH surge Wed, LH surge yesterday, and none today. Is it safe to say I ovulated yesterday, or can the LH surge just show start of it?

We didn’t have sex yesterday. Will try today, but assuming LH surge on a stick has me thinking I missed my window even though I know some eggs don’t die for after 24hrs.

Thoughts?