Jessica Simpson Shares Her Diet & Exercise Plan: 10 lbs Away From Her Pre-Baby Size, "Body Not Bouncing Back Like a Supermodel"

Jessica Simpson, pictured during her 'Tonight Show' appearance in March. (Source: NBC Screenshot)

Weight Watchers seems to be working for new mom, Jessica Simpson. 

"I'm 10 pounds away from my pre-baby size," Simpson told Us Weekly magazine. During her pregnancy with daughter Maxwell she weighed as much as 170 pounds.

But the singer, hits a note with new moms everywhere: just like most women, this starlett can't drop the baby weight quickly. 

"My body is not bouncing back like a supermodel," Simpson told USA Today. "I'm just your everyday woman who is trying to feel good and be healthy for her daughter, her fiancé [Eric Johnson, 33] and herself."

So how is this busy celebrity mom dropping the pounds? Simpson wakes up at 7 a.m. to feed her little girl, then eats breakfast: half a Flatout flatbread sandwich with egg whites, peppers and fat-free cheddar ( which equals to 6 PointsPlus on Weight Watchers). 

An hour later, Simpson puts on a pedometer and hits the streets with Johnson and Maxwell. "I'm trying to do at least 14,000 steps a day," the fashion designer said. She also exercises four times a week with pro trainer Harley Pasternak -- losing weight requires hard work and sweat. In each 45-minute session, Simpson begins with a cardio warm-up, followed by circuit training including dumbbell triceps extensions, hamstring curls and crunches with a medicine ball throw. 

For cardio, her and Pasternack mostly just walk because, as she told USA Today, "my boobs are way too big to run at this point."  

(Photo : Twitter/JessicaSimpson)
Jessica Simpson's infamous twit pic of her ample post-baby cleavage. 

And her efforts are paying off. "Her waist is going in, and her thighs are getting smaller," Pasternak told Us Weekly of his A-list client. 

Another tip from the former reality star? Make lunch your biggest meal to stay full throughout the day.

Simpson is set to unveil her trim physique in a series of Weight Watchers ads, starting Sept. 10 as well as on Katie Couric's new show, "Katie," that same day. 

The star admitted to USA Today that she didn't know losing the baby weight would be labor intensive. 

"I didn't realize [the weight] didn't all come off with the baby."

But Simpson told Us Weekly, that being a mom has given her newfound confidence. 

"I believe I can do anything!"