Based on the popular series of pregnancy guides by the same name. As of 2022, more than 22 million books have been sold.
Kristen Wiig was offered a role but declined, due to scheduling conflicts with Saturday Night Live (1975).
The Ethiopian boy Holly and Alex adopt, was played by twin Ethiopian boys, who were adopted in a similar ceremony only months before production began.
Elizabeth Banks, Jennifer Lopez and Brooklyn Decker are the only actresses cast as pregnant women who have given birth in real life; Lopez gave birth to twins, Decker gave birth to a son and Banks has two sons via a surrogate. Cameron Diaz gave birth via surrogate in December 2019 and Anna Kendrick has never had children.
Elizabeth Banks, Anna Kendrick, and Rebel Wilson also star together in Pitch Perfect - Die Bühne gehört uns! (2012), Pitch Perfect 2 (2015), and Pitch Perfect 3 (2017).