The question of abortion?

There is an argument that suggest abortion is against God and that no human has the right to take another human life, this i totally agree with in terms of the saved woman of God. Now my question is how does pro-life from a Christian point-of-view apply to the unsaved and lost? Does God hold the same view about killing another human being towards the lost? or is Gods view more towards His own; the saved, the one he has called. Another question I have in mind is when a woman is a Nun and she becomes pregnant by a violent act upon her and is asked to abort the child so as to hide the crime, now who does God hold accountable, the victim? or the one committing to crime?
Another example is a woman is staving and can hardly feed herself let alone another mouth, yet she is forced to have unprotected sex and becomes pregnant and due to her poverty the baby is just left to die anyway. Is that the fault of the woman or the man? who will be held accountable over the death of that human being?
It is easy for us to comment about others when we are living in very comfortable, safe environment, especially men about woman. Yet to be in poverty or under the control of others whereby you are forced to go against your will, this creates a very different situation for the woman concern. What about during war, where rape is common and starvation is a very real issue, does the opinions and views about abortion change due to the environment one is living in?