I don't take DS to my ob appointments as I often have to wait for some time and at 2.5 he wants to playing constantly and my blood pressure would rise trying to appease him lol. but for the scans DH comes and I like to include DS in this as well. At the 20wk scan he called his brother a monkey lol had us all laughing and the one most recent (due to possible placenta previa and high risk pregnancy - high blood pressure at 38wks with DS) his brother was a koala lol.