If everything is healing properly a postpartum, mama will usually get the OK to exercise again from her obstetrician during the 6-8 week checkup. Most docs recommend building back up your workout slowly. If you were fit before getting pregnant, give yourself about two months to get back to the fitness level (but not necessarily body size) you were at before. Start by bundling your baby up in your Bjorn while walking, hiking, and even grocery shopping — every little bit helps.
Source: Flickr user Suzanne Shahar