Pregnant twice to not ovulating at all and being infertile for a year!🤦🏻‍♀️

Been pregnant twice within 4months. Now after a year of trying again after a mc my body has stopped ovulating. I’m currently on clomid but why am I now just not ovulating? What’s the chances of me being able to not ever get pregnant again? I’m only 25. Doctor has done blood work I’ve been checked for PCOS nothing is wrong. I’m just not ovulating An they don’t know why.🤷🏻‍♀️ anyone else have this or have ideas of what the problem is? Thanks