Jessica Simpson Working on Her Post-Baby Weight Loss

6/22/2012 10:28 AM PDT
EXCLUSIVE
Seven weeks after giving birth to her daughter Maxwell, Jessica Simpson was spotted hard at work trying to get her body back to her pre-pregnancy weight.

The 31-year-old new mom threw on her post-partum workout leggings and sneakers and hit the gym in L.A. on Thursday.

Jess should be back to fitting into her mom jeans in no time.