Well, it all ultimately comes down to when you define life.
Imo, life has begun by the zygote stage, and especially by the embryotic stage. I dont agree with abortion in 99 percent of cases. The process of life has begun, and said baby/person would exist if you/she had not effectively pulled the plug on its life. I dont believe anybody has that right, especially in cases of irresponsibility. Guess what happens when you bust in a chicks gut?
I dont mind abortion being available to women in cases of rape tho, especially if done in a quick and timely manner.
This is a tricky complex subject, those are just my own personal views. I live how i want to live, and others can live how they want. Not gonna be picketing abortion clinics anytime soon.