S.R.
My daughter started stuttering off and on when she was around 2. It didn't get really bad until first grade when she was asked to start speech therapy. She is an overachiever and having to think that much about how she talked made it where she couldn't get a word out! I would suggest waiting to see if it goes away on it's own. A lot of children this age stutter because their brain is working faster than their mouth has leared to go and once they develop their language skills a little more, it will go away on it's own. My daughter is now 11 and still stutters, but it is off and on and usually stress related. If she is not reminded about it, you usually can't tell she has a problem.