Jaime Pressly, the Emmy-winning star of My Name Is Earl (and of the soon-to-be-released romantic comedy I Love You, Man) shows of her amazing body and spills her secrets for getting sculpted in the new issue of Shape.

Jaime reveals that she allowed herself to eat whatever she wanted while she was pregnant. "I gained 42 pounds," the 5-foot-4-inch actress tells Shape. "That's a lot of weight for mama!" After her son was born, she set a specific goal: to get back in shape in time for her 30th birthday party. "I needed to get in the gym and run on the treadmill and lift weights," she says.