Would it be wrong to just send my mother N law a birth announcement in the mail?I dont care to call or see her?

Tell her that your first impression of her was horrible and that you make judgment calls from that. It's your child. Tell her you have no intentions of letting her see your child. Your husband supports you. So you don't need to put up with what shes putting you through. She has no legal right to see your children. Good luck. My husband doesn't approve of my dislike for his mother.