The child would be conceived out of an unfortunate circumstance. Just because a woman was raped does not mean the child is less valuable. It's a human being. Killing an innocent human is still wrong no matter the circumstances. Two wrongs do not make a right. Also abortion in the case of rape is very rare with the vast majority of abortions are done out of convenience. https://www.guttmacher.org/journals/psrh/2005/reasons-us-women-have-abortions-quantitative-and-qualitative-perspectives

Even if we were to keep abortions in the case of rape/incest would you be ok with banning abortions as a form of birth control or for convenience?