For me, the word "stutter/stutterer" can be difficult to pronounce by itself. So you might feel easier to say something like "speech disorder" or add words before it like "mild stutter/ mild speech disorder" You know just to ease that S and T part a little bit to give you a chance to pronounce these sounds easier, especially at the start of your presentation. Overall I would say breath and don't overthink, oh and avoid coffee before the presentation!