You have to sing to the baby
and introduce him to his older cousins;
make sure he gets plenty to drink, while remembering to take pictures of "Baby's First Sip" for posterity,
and when all that is done, get ready to do it with all the siblings.
Then you stay up til 1 A.M. to make sure that they're not cold or hot or weak or unable to find the food, or in danger from their siblings. Exhausting, but soooo fulfilling to little mothers.