Jessica Simpson br Loses 100 Pounds br by Walking Simpson’s personal trainer, Harley Pasternak, br worked with her doctor to create a health br regimen after she gave birth to her third child. Simpson shared on br Instagram that she had br weighed 240 pounds br while pregnant. Jessica Simpson, via Instagram Pasternak found healthy br alternatives to Simpson’s br favorite foods and had her br walk over 14,000 steps a day. The personal trainer wanted to br implement routines that Simpson br could maintain for years to come.