My boyfriend does dip & smokes?

This boy loves me with all of his heart & we will be having a baby in December & I told him to stop doing dip & smoking months ago & he says he stopped then I saw a ash tray in his room & his sister told me he does dip still. I'm starting to just feel sick to my stomach because I hate smokers, dippers & he told me he "tried" beer again.. Which I thought was stupid.. I really hate how he tells me he's holding his friends dip when it was his!! ): help! How do I stop him? & his dad says he needs to stop whatever he's doing when the baby comes