With this said, how do i ask her not to smoke so close to bub when he/she is born?

come on seriously... tell her. Dont mean this to sound harsh but step up and grow some balls. Just say "please DO NOT smoke around my baby". Its like saying "please drive the speed limit with my baby in the car"(just an example). U just never know. This is YOUR babies health we are talking about so it shouldnt be how its said, just that its said and she understands. I would not be bothered if someone told me this.

Yes, washing your hands after a ciggarette is a good idea.