I guess I just want to add something else to this discussion.

I understand and recognize (as does the Catholic Church) the freedom of conscience and the free will that God gave us which is what I think some pro-choice people are trying to say (that God gave us free will so we should be able to use it).

However, in regard to abortion, if you are Catholic and you believe that life starts at conception then an abortion would be murder. Neither the law nor our Catholic faith permits murder of a non-aggressive person (like if the person was threatening your life in a violent way).