Well, either, a) people are going to say "well, yeah, it's an already born child" in which case you've proven nothing, or b) people are going to say "no, the gorilla is endangered and we're not, we're not going to value the safety of an already born child over the animal" in which case how are you going to get them to see abortion your way?
So, no matter what the case, what point do you think you've made?