When you legislate what is and what is not "elective" you tie doctors hands.

We tie the hands of doctors in many ways. There are literally millions of lines of laws and codes of ethics by which doctors are required to abide. I agree that there is the risk of edge cases where life saving medical care could be withheld. I do not consider that a good reason to make elective late term abortion legal. Instead I believe that risk can be overcome with better training.