Jessica Simpson Has First Weight Watchers Weigh-In

Jessica Simpson is seen sporting fitness gear after a workout in Los Angeles. Simpson gave birth to her first child, a daughter named Maxwell on May 1, 2012. Credit: PacificCoastNews.com

The scale has spoken -- and it doesn't have good news for Jessica Simpson.

A source tells Us Weekly the new mom learned at her first Weight Watchers weigh-in -- a few weeks after the May 1 birth of daughter Maxwell -- she had gained 70 pounds. Luckily, the spokesperson, 32, has $4 million worth of motivation to shed them.

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Her contract requires a 20- to 30-pound loss by the end of August or no payday, says a source. But it won't be easy.

"Jessica has always had issues with junk food," says a Simpson pal. So the 5-foot-3 fashion mogul has called in reinforcements: She enlisted her mom, Tina, and a few pals to do the program "to help keep herself in check," says the insider.

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Simpson, who plans to breast-feed through July, also ditched her beloved high-calorie margaritas, adds the source. "She had a few drinks postpregnancy, but then stopped."