How can rape possibly be "legitimate"?

Someone, PLEASE tell me the difference between "legitimate" and illegitimate" rape. In the meantime, please excuse me while I empty my stomach over the toilet bowl.

 

http://firstread.nbcnews.com/_news/2012/08/19/13365269-missouri-republican-legitimate-rape-rarely-causes-pregnancy?lite

 

So let me be clear on this: if you get pregnant after being raped, it means you really didn't mean "no" when you said "no"?

 

What about if you get AIDS or some other STD while being raped? Does that mean God felt you deserved to be punished for "tempting" a man beyond his strength to resist? Obviously it could not have been a "legitimate" rape if the victim suffered such a result.

 

Just shoot me.