My mom and I just had a serious argument. It's like ever since I got pregnant, my mom has just got…

My mom and I just had a serious argument. It's like ever since I got pregnant, my mom has just got so over protective and jealous of my MIL. My mom thinks that I've been choosing my fiancé side of the family over mine which I'm not! Yes my in law side of the family had done a hell of a lot more for me and my child than my own family, but I've never said anything about that. I never downed my family because it's not a competition but that's how my mom sees it! My mom has the tendency of overreacting and then acting like she's done nothing wrong when you correct her. She's been that way all my life and I've never said anything because that's my mom. I respect her and I've never talked back to my mom. But I'm just so sick of biting my tongue and killing myself trying to make everyone happy. I can't continue to try to please everyone (i.e. My mom, his mom, etc.) I have my own son to worry about now and if they don't like what I choose to do with MY son and how I raise him then they don't have to be a part of our lives!