Personally I don't think it should be a method of birth control but there are situations ..... yeah, I guess murder has its comfortable parameter ...
afterall: Life is meaningless & everything dies.
If you don't think there is ever an appropriate time to take the life of another then you are a child. It does not have to be comfortable for it to be justified. You would be hard pressed to find any condemnation in clear-cut self-defense situations. But then, it's. It murder if it's not illegal.
On the topic of abortion, I am not sure where my line is anymore. I used to be an unquestioning pro-choice person that disapproved of abortion as birth control, but not anymore because I am not sure when life begins or what reasonable criteria for such a thing is. (I do know the answer is not in the Bible.)
However, if a woman's life is endangered by a pregnancy, then I have no qualms about aborting it, only sadness. Other situations, like rape, I am not as clear. My knee-jerk is to agree with Jura, because pregnancy and parenthood are not something that should be forced upon anyone through violent coercion but I am not even 100% on that being a fully constituted justification. It's a sticky topic and to pretend otherwise is to be insensitive and unempathetic.
Now please don't make me regret giving a thoughtful answer by resorting to biblical authority.