In that sense of “right to life”, as it is defined by the law, then yes, I think that it should apply to unborn children who have developed the nervous system, unless there are circumstances discovered at that point which threaten the life of the mother, or of the fetus and mother simultaneously.
Chameleon said: But what about before the embryo develops a nervous system? Is it then alright to have an abortion done at that early stage, because by our assumed definition of a “human being”, that stage of development would not be included?
In my definition, yes, it is fine to abort a fetus prior to a functioning, developed nervous system.
As for that “gray area”, we’ve pretty much agreed that there is no way to -exactly- know when a fetus becomes a human being, so we’ve mostly just been debating based on a hypothetical situation (my definition of when a fetus becomes a “person” becoming the law).