i'm now three weeks pp and started working out 2 weeks pp - light yoga stretches, low impact aerobics (step no risers at the moment), core work (just kegels and other light stuff) and some light weight work. i don't get much time but i make it a priority to try and fit something in most days - a way to get some much needed me time into another wise frenetic time. i find that working out in between feeds, gently, gives me more energy than resting would. in my experience, you cant go far wrong if you just listen to your body, and start easy. i will up the intensity slowly over time - i'm itching to get back to running and more intense weight work. i can't imagine how i will find the time at the moment, but i guess its a question of priorities.
best of luck to everyone - its a precious time with your new born. we are so lucky.
tan