I'd argue that the pregnancy of a 10 year old endangers the life of the rape victim.
My standard argument is along the lines of the fact that carrying a pregnancy to term is more dangerous for the life of the woman than having an abortion. here, it is even a stronger argument,as a 10 year old's life id definitely endangered from a pregnancy.
I advocate that folks of any 'moral' persuasion (and especially Critical Thinkers) stop using the word "murder" ('killing' is accurate) unless/until a jury has decided, regardless of the circumstances (police shootings/other).