Pregnant baby mama

Hey ladies… idk where to start.. i knew this was coming but need to vent… Emotionally I feel upset/ jealous/ hurtful… my husbands baby mama is pregnant with her husband of few months. One side of me is happy for her but the other side is jealous because she told me she hopes I never have kids (I have fertility issues)… what should I do to get out of this wrist emotional issue… ? Please help ♥️ I love you all ♥️