Jennifer Garner has admitted that she and husband Ben Affleck are not on the same page regarding having more children.

The 40-year-old actress welcomed the couple's third child, Samuel, in February adding to the two daughters they already have; Violet, six, and Seraphina, three.

But the busy working mother told Extra that she is unsure she can handle another baby.

"It's absolute chaos!" Jennifer told the show about the addition of their little boy. "I really did not realise how much more work three was going to be than two."

"The fact that Ben wants another is true I can tell you that would be a pretty uphill battle with me. I am not anticipating having more kids!"

And although her family comes first, Jennifer says that getting back to work to do The Odd Life of Timothy Green was too great an opportunity to miss but she had great help.

"Ben took a break, he came, he did the school drop-offs and pick-ups and bedtimes," she gushed.

"He's a great father and that is earned."