Jamie Lynn Upset About the 20lbs She's Gained

Pregnant Jamie Lynn Spears is desperate to get back her fit figure after she gives birth next month. She gained almost 20 pounds while pregnant and hopes to slim down as soon as it's safe for her to do so. Jamie told OK!: 'I try to stay active..

..but you can't do too many exercises because that's not good for the baby. No running on the treadmill. I want to get back to my old weight, but you can't work out right away. I don't want to stay this way. I'll just stick to my treadmill and weights, and I won't eat cheese every day.'

But Jamie Lynn won't hiring a personal trainer. 'You don't have to pay somebody a bunch of money to make you skinny again. If you want to be skinny, you have to do it yourself. And I love to swim, so I know I'll be doing a lot of that.'

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