If this is not a medical emergency (and I am talking about life-threatening type), then keep the baby where the baby has been born - infants are very sensitive to the change in anything (like water and food) not to mention such HUGE changes like a change in geography and time zone... Your pediatrician will not prevent you from traveling but an advice from a mother is to wait until the baby is older (much older).
How Many Days Can A Newborn Baby Can Travel Abroad After Delivery As Long As Baby Is Well ? What Are The Requirements?
We traveled internationally with our newborn (United States to Australia) at just under two months of age. Here is some great info on obtaining a passport as soon as possible.