Do you mean my position on this subject? I'm watching most of Stefan's videos, but I still feel like a noob :), so excuse any "NotAnArgument" I make or if I contradict myself. The reason I asked about this here is because I guess this forum is the best place to get good answers. There is no particular reason why I chose to start with this.
I'm not a native English speaker, and I'm not versed in all the different legal definitions of ending a life. Do you mean if I distinguish between, say, homicide, manslaughter, first/second degree murder? I don't know the difference between them, so in this context (if possible) I'm talking about one human ending another human's life.
I don't think that the legal definition of "ending a life" should apply at conception. I think it should vary depending on the situation. I don't know what the "default" position of a pro-lifer is on ending a baby's life to save the mother, but I believe the mother is worth more than the baby. I also believe that an unwanted child should not be born, so it shouldn't matter at which time the pregnancy is discovered; an abortion is a solution.
My main concern is that no matter at which week any nation draws the line, there can't be a difference in the punishment for ending a life between "a kick in the stomach" and an abortion.