Interesting topic.
Here in US there is a new bill making it a crime to harm a fetus in a violent act, as if it were a full person. The pro-choicers are outraged....even though the bill explicitly excludes abortion from it. Abortion sympathizers just cant seem to face up to a pre-born human as an actual person.
I am a solid Libertarian...and am pro-choice on most everything....except abortion. A parent does NOT have the right to 'choose' to kill their children. Abortion is agression. Roe v Wade was wrong. If there is to be any sort of compromise on when life actually starts....I would say that abortion would be outright murder if there are detectable brain-waves present.