Stepmom Drama

So, my stepmom wants to be in the delivery room and is set on it. I want my husband and sister to be in the delivery room (my mom passed away years ago and my sister and I are super close). My stepmom also smokes. She wants to stay in our home to “help out” the first couple weeks of baby being home. The issue is, although she smokes outside, she still smells like smoke when she’s done. And honestly, she drives me nuts. I adore my dad, however, and don’t want him missing out on the opportunity to spend time with his first grandchild.

I need your advice on what to do, ladies. I don’t want to hurt her feelings but at the same time, I want to do what’s best for my family. Help!