Please follow your doctor's advice before getting into strenuous exercise. If you’re looking to get out there right away, most all-terrain jogging strollers like the BOB have infant car seat adapters. This allows you to mount the car seat directly to the stroller and get moving in a couple of simple steps. However, it’s recommended to wait until the baby is at least 8 weeks old before doing much physical activity with them in the stroller. It's also generally recommended to wait until they're at least 6 months old and can support their own head before going off-road. Stick to easy and flat paths early on to prevent sudden bumps or rough ground that may shake your baby. If you just gave birth, your body will certainly need time to heal and build up to more rigorous workout routines.