WOW! That is awesome. I can't remember from when I was preggers with Talia. But once she was born she recognized the sound of Daddys car whenever he got home from work. Didn't matter if she was sleeping, which she usual was as daddy worked night shift and didn't get home til 3-5 in the morning. She would wake up as soon as she heard the car and daddy would get her as soon as he come in and played and talked to her for 1/2-1hour. She loved it and so did he!! They are such clever little things.