Please help!

So me (21) and my bf (23) have been trying for a year now for a baby and I’ve been consistent with tracking and avoiding anything that could hinder the process… with the new information I’ve gotten and received about birth control as I now have irregular periods. Has anyone had any trouble with getting pregnant afterwards in stopping birth control??? I’m severely afraid I am infertile or my body now won’t support a baby as I had a miscarriage back in 2020 though with my long time ex