Smiley clear blue question! Help!

Jenna • Newly wed 4.7.2018 💍 - Fur mama 🐾🐾 - Expecting our first 👶 June 1st 💕

Hi guys! I have a question about clear blue smiley face opk test (the kind where you get a blank circle or 2 days of smileys) so Thursday morning I had a blank circle... Thursday night a smiley... Friday morning had sex (still had a smiley!)... and then this morning had sex but realized the I no longer had the smiley when I tested. Was it still helpful to have sex this morning or was yesterday the only day that counts?? This is my first month trying so I’m new to all this! 😅 What exactly does the smiley mean, that I’m ovulating it ABOUT to ovulate?