Yeah I've been told about the "spitting image of their father" for the few days/weeks because it went back to the cavemen times or something? If the baby looked like the man then they wouldn't walk out on their woman... so thats where it stems from.

Its true in the case for all my children - at BIRTH they were the spitting image of DH, now they pretty much all look like me.. LOL.. (poor buggers) Especially DD2, she's my spitting image of what I looked like as a baby.