Merged your other post here. For some reason it lost AmmaMD's reply OHM77. I'm so sorry - I did not intend that. It was supposed to merge and keep the replies from there. Not sure what I did wrong moving it, but my intention was to get it out of the blog area and consolidate your replies into one post others could add to. I'm glad you saw her response, though, anyway.
I did not mention my son in my personal statement - but again it was not relevant to why I picked my field. If being a parent is part of why you picked peds, why not? I agree with the others not to say you did less extracurricular or anything else because you are a mom. Residencies would be concerned. My dean also put in her letter that I was a mom, as did my letter writers. I thought that was enough and I didn't need to talk about it. I wanted my personal statement to be as "professional" as possible. I also agree no field is noncompetitive anymore given how hard the match was last year.