The Alias actress recently gave birth to her third child, a son named Samuel, and while she would like regain her pre-baby figure, she says she's too busy to worry about it.
A source close to Jennifer - who also has daughters Violet, six, and three-year-old Seraphina, with husband Ben Affleck - told Closer magazine: "Jennifer has had a yoga instructor at the house a couple of times, but she's not throwing herself into a hardcore gym routine yet. She does feel she's gained more weight this time around, because she was so busy with the girls that she found herself not eating healthily. But she hasn't had time to really think about it.
"Still being in her maternity wear is her motivation, but it's only been a few weeks - it's just not a priority right now."
After her previous pregnancies, Jennifer, 39, has said she felt pressured to lose her baby weight especially as she gains so much when she's expecting.
She has said: "I do feel pressure, but I can't seem to be pregnant without gaining 45lbs, so there's not a lot I can do about it."
- BANG! Showbiz