Grammy's new baby

Last night we went to see my mother after she had back surgery at Charlotte Hungerford hospital, her room just happened to be in the maternity ward. Ethan had fun eating baby Karl's snacks and watching cartoons. Today we were driving in the car when I explained to Ethan that Grammy is home from the hospital and that we were going to her house to see her, he then asks "did Grammy bring her baby home too?" I explained to him that Grammy didn't have a baby that she had an operation on her back.