Roll over, roll over....

Caleb did his first complete roll over today (including getting over that arm). I just was relieved that I was here to see it...selfish, I know. I feel like he hasn't even been trying that much, just the last couple of days he would get over on his side. This morning in his play mat he got pretty close, and actually turned himself around almost 180 degrees (see pics). Then tonight, again in the play mat, he got his legs over but was sort of stuck on the arm. He kept working at it and, voila!