For what it's worth, I find it obscure why someone would wish to pursue this course of action, but I don't find it obviously to be morally objectionable in any way I don't find abortion morally objectionable.

Suppose the woman instead removed the fetus without its being killed, and put it in some kind of suspended animation. Perhaps she thinks, "Well, maybe later I'll be ready for a child, and then I'll continue the pregnancy." It's not obvious why this would be any more objectionable than abortion, and I certainly don't see a difference between this case and the one in the question. Indeed, one might wonder whether, at certain very early stages of pregnancy, there is very much of a difference between this and what routinely happens in fertility labs.