02/22/2013 at 11:30 AM EST
Looks like Jessica Simpson
is keeping true to her word
– and her healthy new outlook on pregnancy.
The star, who's expecting her second child
with fiancé Eric Johnson this summer, decked out her baby bump
in an all-black ensemble Thursday, looking fit and trim while out in L.A.
The Weight Watchers spokeswoman
is already mom to 9-month-old Maxwell Drew
and has spoken out about gaining more than 50 lbs. while pregnant with her daughter.
"Being healthy has become a part of who I am, which is great timing because I'm having another baby," the expectant mom
said late last year
. "I feel like I'm on top of the world."