Do I have a stutter, or is this a normal thing?

Do I have a stutter, or is this a normal thing? I've noticed I stutter a lot when saying specific things. Like reading a script or saying a tim hortons order that someone sent me to get. It's not every single word or anything, but it seems to happen from 1-2 words per 4 sentences or 2 per sentence. Depends on the situation, I guess. Is this common? Or do I have a light stutter or something PS: I dont think this happens when I'm saying something non-specific like just talking to a friend