Pushup Challenge! - End of Week One

Today, I did a total of 41 pushups. Yay.
But I still max out at 10 consecutively.

My arms, shoulders, and back are all fine. It's my lower abs that are killing me. Am I doing this wrong? I don't remember pushups hurting this much back when I could do 20 straight without trouble. Granted, I'd been training up for a season of football then, so I was in about as good of shape as I have ever been.

Bah! I will get back in shape! I know round is a shape, but I'll accept rectangular. We men aren't supposed to have curves, dangit!