Our firstborn was a whopper: 10 lbs, 10 ozs.
Wife had him naturally (with an episiotomy). She was in the hospital for 4 days; could hardly walk for a week. That boy was walking at 9 months. At 10 months he was running and jumping in his crib, and did the highjumper ‘fosbury flop’ right over the fully raised side, and down to the hardwood floor. He cried for a bit, but was running around shortly after.
Hence my comment, “the woman thanklessly does most of the work.”