Male here who stutters. They’ve already probably put you on some kind of pedestal being that you’re attractive, so as others have said, I’d suggest being open about your stutter from the get go because being vulnerable like that is going to show them that you’re human and “in their league” because they themselves aren’t perfect, and have insecurities just like you. I was open about my stutter on the first date with my girlfriend and she loves me for who I am because I (and you) are more than our speech (despite its very real frustration!)