Delivery room

I’m due on the 18th and so I’m any day away from popping right now... my husbands mexican grandma has been in all 12 grandchildren’s deliveries && is now expecting to come into mine as I’m giving her the first great grandchild. Ive told my husband & his mom I’m not okay with it && my husband told me I should just let her in & that he doesn’t want to hear her complain or be over sensitive about it forever. I feel like it’s myself against my husbands family & I don’t want to disappoint his grandma but I don’t know her that well and don’t feel comfortable enough having her in there... I don’t know what to do 😓😓😓