I don't think you can make a statement until you're in the position where you have to make the decision yourself as Loki pointed out.
You can say you're against it no matter what the circumstance but imagine being raped. Or your girlfriend being raped. Would you still want to keep it?
Or what if the baby has absolutely no chance of surviving past a few hours/days/weeks? Would you wanna do that to your child.
Of course it's different for everyone and every situation, but I'm glad I live in a country where it is legal. Not that I've ever had to consider it, I'd rather be safe then sorry, but you never know.
And for the record, by no means I think abortion should be used as a form of birth control or contraception.
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