I am a college professor who stutters. In my first day of class, during introductions, I tell them I stutter and that if they don't understand something I say I would be happy to repeat. My stutter is not severe, but I do stutter in class (roll call is hard). Yet my students don't seem to care. It never came up in my evals and nobody ever complained. Be open about it and don't make a big deal. They won't.