While the actress is content with having three little ones, the actor would like a fourth baby to add to the family.
A friend of Jennifer's told website UsMagazine.com: "The marriage is rock solid. Jen is happy with three now that she has a boy. Ben wants four."
The duo celebrated their seven-year anniversary on June 29, just four months after the 40-year-old gave birth to their first son named Samuel.
Jennifer will soon join 39-year-old Ben in Puerto Rico, where he will film his new movie 'Runner, Runner'.
Although 'The Odd Life of Timothy Green' actress has been spending quality time with her son and daughters, Violet, six, and Seraphina, three, she has hinted she wants to get back on the big screen.
While accepting the Female Star of the Year award at CinemaCon in April, she thanked her husband "for taking over drop-offs and pickups and bedtime so I could make it [to the event]."
She added: "And thanks for making me feel like maybe someday I will get to relax in a hair and makeup chair again and leave the maniacs at home with you!"