Vanessa, did you have your tubes tied or anything out of the "norm" c-section? I only ask because if not, you should be feeling pretty good by now. Usually with each c/section, it gets easier. Were the others this bad? With Kayla I was pretty sore, with Emily, I was carrying drywall upstairs at just 1 week pp. :/ With Abby I was doing really good by 3 weeks and I had my tubes tied. I was sorer that with the first two but still feeling pretty good by now.
If you are still so sore, something might be wrong. Have you seen the Dr to make sure it isn't infected or anything?
Don't forget to take care of yourself! I know it's so hard to do with 3 kids but you have to! A healthy Mom makes for happier kids.