There's no argument that women have abortions because they have an unintended pregnancy through careless sex. I still maintain that it's the woman's very personal decision.
I'm sure that there are many, many reasons other than rape or aggression. I doubt that it's as easy a decision as choosing toast or biscuit. 
The issue is, the woman is the one carrying the baby. We are not breeding stock, we are not property. 
I can not imagine being forced to carry an unwanted child to term. 
I support health care including abortion for women and children. Better yet, universal health care, excluding Viagra.
It's kind of like the notion of Civil Unions before gay marriage was legalized - health care for women and children is at least a start.