It's unfortunate that the Christian ultra-right has hijacked the abortion debate, because in reality this isn't a metaphysical question at all; it can be argued from the point of view of almost pristine logic.
President Obama dispatched Joe Biden to Kenya last month. Biden went there specifically to lobby for a new constitution for Kenya. Article 26 of that new constitution would repeal the country's long-standing pro-life law on abortion.
Democrats in D.C. are going about this regulation thing all wrong. Want to get Republican buy-in? Give Republicans the kind of regulation they like. As usual in U.S. politics, the states provide the road map.