Diaper Out!

This morning, while we were getting ready to go to the gym, I started dressing Diego and half way he ran away. He always do that, so I started dressing myself. When he came back, he had pulled the diaper off and had a face.................. like he had done something wrong.
I asked him and he said pee pee. He brought me to the corner, and to my surprise. He had Pee in the carpet. I wanted to scream. Then, I thought it was funny and he is almost ready to be potty trained.
Where is my baby????????? I have a BIG BOY now.