No, you are dead wrong. You are missing the point. The two kids you have now would not be here if they had not gestated within your womb. Killing them while unborn IS THE SAME THING as killing them after their birth. Why not apply your twisted logic to your post-born kids. Would you kill your youngest if it meant protecting your oldest from ‘poverty, starvation, and pain’?
Using the excuse that an unborn child ‘may not even be viable’ to justify killing them is like trying to justify killing the two children you have now because they might die in a car accident tomorrow.
A child unborn is NO DIFFERENT than a child born. Our humanity remains unchanged from the moment our mother’s egg is fertilized to the moment of our death.