I voted yes. This is only our second year of getting the flu shot. I feel that flu shots are not useful in children under the age of 2 and, in addition, I feel that there is absolutely no study on flu shots in the first trimester (we have studies on the other trimesters or studies that most people were not in first, kwim?) so I wouldn't do it then either.
Some reasons we have changed our mind are the kids being in school, my best friends' son having horrible asthma (spent many weeks in CHOP last winter

), illness in relatives, holiday travel, having a baby during flu season, and also I feel more comfortable with them now that I have seen some of the studies. I also am more comfortable with the efficacy of the flu mist shot over the injections for the kids...plus there's no pain involved so that is easier on us as well.
I am in my later second trimester, so I was comfortable getting the injection. My arm was sore for a few hours and that has been my only side effect. I was also heartened by the study that came out a week or so ago about the flu shot during pregnancy protecting the newborn from flu as well. We are big on "cocooning" here.
I think if our risk situation changed next year, I would change my mind again. But since our babe will not be two yet and will not be receiving one next year, we may do it again for the cocooning affect.