Benefiting both you and your baby, exercise is a key to maintaining your muscle strength, aerobic capacity and well-being.

You don't have to give up exercising just because you're pregnant. Most women who become pregnant can follow a modified fitness program, with their doctor's approval.

Here are a series of exercises you can do throughout your pregnancy.

Misconceptions about weight training -- often based on unfounded fears of becoming too muscular -- can keep women from pushing their fitness levels.