My youngest will be five years old next month so it's been a while since I was post-partum, but seriously...!? I know I wasn't running even a single mile six weeks after my daughter was born. It was 4 weeks after my son's birth that I tried running. It was extremely painful (like all my body parts down there were falling) and I knew right away that my body was not ready. I had to wait until about 6 weeks and even then it was something like 4 minutes of very slow running alternating with 1 minute of walking. I'm absolutely stunned when I hear of women who run their entire pregnancy and then pull off marathon finishes like Anna's. Incredible!