Jessica Simpson had two children in less than two years and the star has now gone back to her pre-pregnancy weight.

The 33-year-old and her fiance Eric Johnson, a former NFL star, have two children together. Their daughter Maxwell Drew Johnson was born May 1, 2012 and son Ace Knute Johnson on June 30, 2013.

Simpson was heavily teased for her weight gain during her pregnancy with Maxwell. And, while her weight gain with her second baby wasn't as extreme, she was still ridiculed.

"It does get old having people harping on how much you weigh or your body after pregnancy. I need to feel comfortable in my own skin," she recently told USA Today. "People are going to pick me apart no matter what I do. I'm always going to have critics out there who will make a story out of something."

The first time around, Simpson wasn't careful with what she consumed and that's the reason for her massive weight gain.

"With Maxwell, I vegged out and laid around. I knew I didn't have to watch what I was eating for the first time in my life. I kind of let loose, and I gained a lot," she said.

However, she watched what she ate when she was carrying Ace and gained what's considered average for a woman during pregnancy. She also incorporated exercise into her daily regimen. The celebrity spokeswoman for Weight Watchers has now shed 50 pounds.

"I jumped back on Weight Watchers," she said. "I saw the results really quickly."

Scroll through the gallery to see Jessica before and after.