Walking will be the best way to start, in all honesty. I'm a long distance runner, so not running really frustrates me. I started pushing the stroller around a 3 mile track at a park and was sore all over my body and completely out of breath- from walking! Once I felt 'conditioned' enough, I hopped in the pool at my gym [this was around 5 weeks after]. Stuff that seemed easy before was really tough- but it something that just goes hand in hand with pregnancy, delivery and motherhood.Walking is never an option for me, but the aftermath of a vaginal delivery is something you can't explain- it's something you just have to go through to see what I mean! C-sections you have to be extra careful of, since they literally cut through all of your stomach muscles. Also, don't worry what you think you look like- other parents sunderstand because they've been there also... and people who've never had kids have no right to judge!