Jessica Simpson isn't scheduled to give birth until next spring, but an insider says she's already planning her post-baby slim-down.
The mom-to-be, 31, is in talks with Weight Watchers for a $4 million deal to shed pregnancy pounds, Us Weekly has learned.
PHOTOS: Jessica's bump so far
Simpson, who's engaged to ex-NFL player Eric Johnson, had initially intended to sign with the company to lose weight she had gained over the past few years.
"But then she got pregnant," says the source. "So this was the perfect compromise."
PHOTOS: Jessica and other stars pregnant in heels!
Under the contract, Simpson would have one year to use the point-counting program to "lose a significant amount of weight," says the insider.
She's then to show off her results in ads for the company, much like current spokeswoman Jennifer Hudson.
PHOTOS: Jessica's Simpson's Dress Disasters
Despite the deal, Simpson isn't letting her weight gain get her down. "I'm bigger than I've ever been," she recently told Us. "But I want to show off my bump!"
MORE FROM WONDERWALL:
Jessica Simpson's pregnancy puts a pause on her wedding plans
Jessica dishes on how weight gain has been good for her brand
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