Did I miss the part where Christa's pregnancy is actually revealed? They drag it out for three episodes only for Lee to make one throw away comment about how shes doint something (dont remember what) for two.
We could just assume that Lee figured it ou on his own, because by now who hasn't? But thats weired because Christa and Omid dont really react to that comment.
I don't know, just felt it was odd.