My boy was born on October 28th so he's one of the younger babies on this blog. He's so happy and smiley but I feel so behind compared to the other babies here. He isn't rolling completely, just side to side, and isn't sitting up on his own. My friend at work has a daughter who is 3 weeks younger and she told me her baby pulled herself up to stand over the weekend! My baby isn't close! Anyone else?