"Pregnancy was probably the best and the hardest thing I'll ever go through," she said. "I know for a lot of women, it can be wonderful and relatively easy. But for me, it was like 'Okay, honey, do you have to do everything the hard way?'"
The pop star said Jenny Craig's structured eating plan helped her lose the weight, along with a workout routine that helps her stay toned. "I used to be able to slim down just by exercising more, but that's changed. Since having the babies, I realize that 90 percent of losing weight is my diet," she said.
Read more from the interview at Shape.com!