Ovulation and egg release

Joy
So I got a question and I even googled it but still couldn't find an answer...
When a woman ovulates is it for sure that there's an egg released? 
Or can a woman ovulate without having an egg be released? 
Wondering because I took OPK yesterday and I was ovulating so my SO and I BD and like most of us here I really want a baby... Just wondering what are my chances...