I am pro-choice up until 20 weeks. At 20 weeks, the fetus can be viable outside of the womb. Granted, the fetus has to be hooked up to a plethora of wires and be kept in an incubator, but it can survive none the less. Abortion before 20 weeks should be legal, but after is where I personally draw the line. However, it should not be banned outright in case of medical emergency and this decision should be left to the woman and her doctor.