So I don't see my mom that much, but her to to phrase is "my baby" when talking about my pregnancy.
Like, "Ali, don't reach over your head/scream too loud at the football game/jump up and down/eat that, don't hurt my baby."
This irritates the shit out of me. How to break that to her gently?
Re: Annoying
Or, you could say, "It kind of weirds me out when you say, 'my baby' since it's actually my baby mom. Can you think of a different name?" That's more direct and would upset my mom. She would get over it though...eventually.
ETA: If she was telling me what to do/not to do all the time like in your case, THAT would drive me crazy!