I have been out of shape since having my baby. What can I do to get back in it?

Gradually resume . Gradually resume exercise. A combination of cardio and weight training may work best. Choose exercises you enjoy and can maintain. Begin with short durations (10-20 minutes) on nonconsecutive days. Increase duration 10-20% each week. Add in new types of exercise one at a time.
Out of shape. Start out working slowly with a trainer if you don't have the where with all of an organized exercise plan. The trainer will institute a program replete with weights, stretching and cardio.