I took Kevin back for his VCUG test. Unfortunately he had the problem they were looking for. Basically the one way valve that goes from the kidneys to the bladder is a two way valve on his little body. This is luckily something he will most likely grow out of eventually. In the meantime he may need to go on a regular small dose of antibiotics. I am NOT excited about this. I am going to continue to see if there is another option.
If you are interested in learning more like I obviously was, here is an article I found (thanks google)