You may begin exercising two to three weeks after the baby is born. Start gradually and be consistent. Light walking for 20 to 30 minutes is a good activity. It is normal to have some swelling of your feet and legs. If moderate to extreme, elevate your legs higher than your heart several times a day. You may begin Kegel exercises two to three weeks after delivery. Kegel exercises help increase the strength of your pelvic muscles. If you desire, you may begin swimming two to three weeks after delivery.