Hi, my 20 week scan is this week and DH and I were thinking of bringing our 3 yr DD with us. She knows and is very excited about the baby and we want to include her as much as possible but would this be too much? She is very well behaved so I am not worried about her being a distraction to the staff but it was more about the effect on her. Has anyone else brought their kids around the same age to a U/S and if so what it a good experience?