In many states you need an ultrasound before you can get an abortion, so that might be putting the cart before the horse, statistics-wise.

Say you have a kidney that could save your neighbor's life. Let's also assume the government knows this. Should the government have the power to make you give up your kidney to save your neighbor's life? My answer to that is no. I don't believe the government should have the power to force someone to incur a risk to their own life for another. That's why I am pro-choice. I still happily support providing birth control and sex education, things that have actually been shown to reduce abortion rates.