In cases of rape, trying to prevent pregnancies is obviously the best thing. The morning-after pill works successfully most of the time. Ultimately we do better if we do have better education about family planning.
Notes from Wikiquote
Posed question: "What about instances of rape or incest or where the outcome may not be death, but severe medical problems for the mother or child. Do you think that in these cases the decision should be left to the government rather than the families?"