The problem with Akin's point of view is that there is no proof that a raped woman is less li8kely to conceive than a woman who is willing. And in any case, to make any sense, it would have to be 100% effective. Drugged and drunken women would still have willing sex.
I agree that if one starts with the assumption that God personally authorizes all conceptions of any sort and all humans are "born in sin" anyway, then it is logical that all abortions are a violation of divine will, and, since God is in charge and humans are not, all abortions should be made impossible.
I do not, however accept either premise. I hold the opinion that all people have the right to decide whether to reproduce or not, and that sex is as valid recreational a activity as it is a reproductive one. Conception is, like so many things in the universe, a matter of chance, and God does not intervene any more than he creates parasites and tidal waves and volcanoes. I think that each woman has the right to decide entirely on her own whether to give birth or not. The moral judgement, if any, is hers and hers alone.
Todd Akin is a medieval-minded creep, but he did win the primary. I fail to see why he should be forced by the Republican Party to step down, since his views do not deffer from Ryan and others, also creepy and medieval.