I wish I didn't have a baby

I wish I didn't have a baby with my S.O me and his mom don't get along and he won't set boundaries at all his mom is very clingy and manipulative and I can't trust my S.O when me and my S.O agree on not telling his mom the baby medical business he still goes behind my back to tell his mom and she wants to joke on the phone how I'm mean because I won't let her be nosey when it comes to the baby medical business when it's not necessary he's normal healthy baby I just feel trapped I tried talking to my S.O but it's just mind games I was stupid for going through with the pregnancy