Almost all abortions are done during the first trimester and in cases of rape as soon as possible such as a few hours or days after. Third trimester abortions are mostly done to save the mother's life in cases where the unborn is fatally deformed and could die in utero poisoning the mother with toxins of decomposition. Late abortions are too risky to the mother's life to be done as a contraceptive measure. Thank goodness OBGYN physicians are expert at making those decisions. This is in response to Concerned Citizen. Please do not place elsewhere as was done with my similar comment to xswzaq.