I need some advice on the best way to handle this situation. My ex's on-again/off-again girlfriend told my son whose 4 that she is pregnant with a little sister for him. Well, she isn't pregnant and was just playing a game but I am so angry that my son is caught in the middle of her lies. I told my ex that I do not want my son exposed to her in any way so for all future visits, she is not allowed. My son is so excited about having a baby sister and I have not told him that it is not going to happen. My son visited his dad last night for a couple of hours and when I was picking up my son, the girlfriend arrived and said to me - oh perfect timing. I honestly don't care what happens between the 2 of them but I don't like my son being drawn into the web of lies that the 2 of them seem to exist on. Anyone else have this situation and have any great wisdom for me?