The singer has already gained 30 pounds during her pregnancy and has hired a chef to help her cut the calories!

JESSICA SIMPSON'S ALWAYS UNDER THE MEDIA MICROSCOPE WHEN IT COMES TO HER WEIGHT...AND APPARENTLY NOW THAT SHE'S PREGNANT, HER DIET'S BECOME AN EVEN BIGGER ISSUE.


JESS HAS REPORTEDLY ALREADY GAINED 30 POUNDS, AND SHE STILL HAS SOME TIME TO GO BEFORE HER DUE DATE. A SOURCE TELLS IN TOUCH WEEKLY, 'at this rate, she could wind up gaining 70 pounds before she gives birth.'

SO APPARENTLY THE DAYS OF INDULGING IN SALTY CHIPS AND EXTRA GUACAMOLE ARE OVER, AND JESSICA IS STARTING AN EMERGENCY DIET -- STAT. THE INSIDER ADDS, 'She hired a chef to help her cut calories and make sure she's eating the right foods,'
AND AFTER THE BABY'S BORN, SHE PLANS TO DROP THE L-BS WITH WEIGHT WATCHERS. SOURCES TELL US WEEKLY, THE MOM-TO-BE IS IN TALKS WITH THE PROGRAM FOR A $4 MILLION DOLLAR DEAL.

AN INSIDER ADDS THAT SHE INITIALLY INTENDED TO SIGN ON WITH THE COMPANY TO LOSE THE WEIGHT SHE'S PUT ON OVER THE LAST FEW YEARS. BUT THEN SHE GOT PREGNANT, SO THIS WAS THE PERFECT COMPROMISE. .