BTW, when we look at history, we need to look at the huge number of "exposed" babies in the past. Babies that were born alive and left "exposed" to the elements to die were very common from the days of the Roman Empire (and probably before)until much more recent history. An interesting book on the subject is "The Kindness of Strangers" by John Boswell. Boswell argues that up until the 2nd half of the 18th c. that 25-33% of all babies were abandonded in many European cities. Most of these babies died.
Kate, I must respectfully say that because any decision a woman makes when faced with unplanned pregnancy is going to be with her for the rest of her life, then the answer is to let her make it herself. To go back to a time when women were forced by circumstance to carry a pregnancy to term, to act as a brood mare for someone who wants to adopt, is abusive and cruel. To have women faced with unsafe, sometimes mutilating, sometimes fatal, illegal abortions is ridiculous. Let's all work together to make abortion rare. But please, let individuals decide for themselves when faced with these difficult issues. To do otherwise is to play God. I know that I am not qualified to do that.