Reading some of the posts above, it seems as though some need to take a cleansing breath in here and try not to make things personal.
Some folks might be uncomfortable with speaking about Emily's pregnancy and that's fine. It's also okay to wonder whether or not she might come back as a result of the pregnancy and the various comments she's made during interviews regarding the subject.
Don't we wonder every year whether the actors will sign their contract and/or return to the show? It seems like a pretty similar situation to me. We're not probing into anything terribly personal (off-screen relationships, sexual orientation, illnesses etc.) but rather the more professional angle (will the actress reprise her role after maternity leave is over) and unless the former happens, everything here seems okay.
So let's continue on from here on a more peaceful note.