I Think He Flipped... or something

At my ultrasound last week Anthony was breech (common for my babies at this age,) but I think he just flipped. As I sit here at the computer I am watching my stomach jump outside my shirt. This is unbelievable. His growth must be really taking off, because a couple of weeks ago his movements were barely noticeable, and now I am watching him from the outside. Could it be feet? I think I just got really excited.