Boy or Girl?

Yes yes yes!! We are expecting child number 3 (whoot whoot!!). As we went into our ultrasound for the first appointment, he said he was 75% sure it was a girl (at eleven weeks). Then we went back to the doctor the next appointment (15 weeks) and he said that the heartbeat sure sounds like a girl. Then we went and got our second ultrasound to make sure everything is developing okay (20 weeks) and they were positive it was a boy. I guess the only way to find out for sure is on our delivery date August 29. I can't wait to add to our little family. I hope we can all fit in our car. Anyway, let's see what you guys think... boy or girl?
Here's the second ultrasound pics