How come I don't ovulate?

Tausha • 💕Hubby and I met 6-16-12, got married 9-9-18. Our boy was born April 11, 2014, Baby girl on the way! 💕
I'm TTC baby #2 and for some reason I'm not ovulating. I've been taking ovulation test and they're saying I'm not. What do I do to ovulate? :(