I would imagine in some cases yes. However that is not what Akins’ said. He said doctors have told him that pregnancy from rape was rare, since a woman kinda shuts down as a natural defense. Do you doubt that some doctors believe that? And might have even told Akins’ that? It might even be true.
RE: “woman's body automatically shuts down”
As a pro-life activist, I had heard this more times than I can count over the past 2 decades. Only after the hysteria following Akin’s remarks did I look for recent authoritative sources to see what they say about it. National Library of Medicine (pubmed.com) contains several references that say either there is no difference or maybe women become more fertile under duress. Sadly, there is a lot of data on war-related rape from Bosnia and other places. However, natural fmaily planning experts, who spend a lot of time and energy studying the subject of fertility, are absolutely convinced that stress shuts down women's reproductive capability. Akin was awkwardly attempting to describe what NFP has been saying. In any case, the better explanation of the position of opposing abortions in the event of rape is that every life is sacred.
And, I still don't get the hysteria. What a tragedy that Republicans are doing so much damage to the conservative cause!