Question: Did Anakin turn to the Dark Side MORE because of a) his fear that he would not be able to save Padme from dying in childbirth or b) his desire for power? I've thought about it, and I honestly can't tell.
Was he just using his fear for Padme as a "good" or "noble" excuse to hide his desire to be greater than any of the Jedi (or so Senator Palpatine claimed)?
Also, if Anakin had confessed to his relationship with Padme--and that he was the father of her unborn children--he would have been exiled from the Order. He would have had to face a choice: either lose his position or lose his wife.
Of course, he lost everything anyway due to falling to the Dark Side, but...