As a newborn- first 3 months or so?

DH has an OOT assignment starting about a month after my EDD. Since I will already be on mat leave he suggested I join him for part of the assignment. I'd wait to fly with baby at least after the first month/ first round of immunizations. Online I found the AAP recommendations for newborn checkups, but wanted to see if people had to take their babies more frequently.

TIA