How on earth do these celebs do it?
They have a baby and then two secs later are back in their skinny jeans.
Well, we have someone spilling the beans on the latest post-baby trimmer, Jessica Alba...
Just two months after giving birth to her daughter Honor Marie, Jessica Alba is 25lbs lighter, and her trainer has revealed how she did it.
Ramona Braganza told People: "Jessica went from a size 8 (UK 12) to a size 4 (UK 8) pretty quickly."
She's been chowing down on a low-fat, low-carb diet as part of Ramona's 321 Baby Bulge Be Gone plan.
But Jess has been getting her sweat on too - and has been putting in the hours in her home gym.
"The baby always comes first, but Jessica definitely set goals for herself," Romona added.
"Jessica has made amazing progress in a very short time."
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