As a new mom, getting your pre-baby body back is a step-by-step process. “Even if you’re in great shape throughout your pregnancy, your abs take a beating,” says Michelle Dozois, co-owner of Breakthru Fitness Studio in Pasadena, Calif. A progressive exercise program like this one—meaning you start slowly and work your way up to more strenuous exercises—is the way to go. “When you do [these moves] in order, you progress gradually and continue to challenge yourself to get back in shape,” says Dozois. As you master each move, add the next exercise until you complete the series. It might take you three months or longer to work up to doing all four moves, but be patient; the payoff is great-looking abs. For best results, do these moves every other day; and always check with your doctor before starting this or any exercise program.