I am strongly pro-life (not as strongly as you but still) but do you really think that a child conceived in incestuous rape should be carried to term? I know it’s not the child’s fault but incest produces children with serious genetic abnormalities in most cases, plus we’re social creatures, and a child born of incest will be a social pariah. He or she, in spite of complete innocence, will not be accepted in the modern society at all, and physical life is not enough. What do you think?
If you allow the killing of just one innocent human being because of the manner of their conception, you have no moral justification for being pro-life. You cannot be pro-life some of the time, that is what is known as being pro-choice. You are choosing to kill a prenatal child because of a social taboo or because you believe he or she may have a genetic disorder. This is no different than aborting a Down syndrome child. The fact is that a child conceived from incest is only two percent more likely to experience any genetic abnormalities, and these would likely be mild or innocuous.
Look at these ultrasounds and imagine that the child at the top left was conceived by a married couple and was planned, the one on the top right by a 14 year old, the one on the bottom left by rape, and the one on the bottom right by incest. Since you are ‘strongly’ pro-life, I will assume you would only kill three out of the four children. You didn’t mention rape between strangers, so I assume you would spare that child. If not, you would kill half of these children. You didn’t mention age of the mother, but if you feel 14 is too young, then you would kill 75% of these children. Do you see why you can’t pick and choose who should live and who should die if you are truly pro-life?
If you believe that a prenatal human being has an inalienable right to life, liberty, and the pursuit of happiness, that they are just as valuable as you and I, then the manner of their conception is completely irrelevant.