re: Look at the numbers in my first post.
A "fetus" in a 27-week abortion (Tiller's average term) has at as good a cerebrum as a two-week-old infant. How much brain activity does a child have to have before it isn't a good idea to kill it anymore?
Defining not knowing about a pregnancy as a "medical reason" is stretching the term beyond recognition, kind of like the "mental health" loophole. Actual fetal or maternal health problems account for only a fraction of abortions, even late-term ones.