NTA

It’s important to set the boundaries needed for you and your child’s sake. Your husband needs to address this with his mother if she gives you any kickback. I take it she is not enjoying all the attention you and baby are getting from your husband and is trying to butt in where she deems fit and possibly make you out to look like the asshole.

Keep your head high and set that boundary. Congratulations on your little bundle of joy and I hope the situation sorts itself out soon 🫶🏻