How do you know when you’re ovulating?

Any signs? Symptoms? According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> im done ovulating & my next period is in 12 days but I think I didn’t put in the correct finish date for my last period. My bf is coming over tonight and im hoping we can get a little frisky 🤗