See thoughtomator, there are cases where women have falsely claimed rape just to save their reputations. As this situation may be rare, it has and will continue to happen. So, why would a woman stop at falsely accusing someone of rape, then get the abortion, with full knowledge of those kinds of ramifications. It won't, they will do it regardless. Their thought process is much too selfish and resentful towards the baby. This is why abortion should only be allowd in the case of peril to the mother.
We treat those as the double criminals - murderer-perjurers - that they are.