I don't think stopping women having abortions is the correct route (nor is it really possible), but I do think a certain amount of effort should go toward discouraging women having any invasive surgery.
Terminations shouldn't be taken lightly and I think there needs to be a lot of support for the mother and father (where applicable) post-abortion, including talking about how to avoid the situation repeating itself in future -- by encouraging better decisions around contraception (this obviously doesn't apply to every case of abortion, individual situations differ).