There's a macroscopic issue people are missing here...
Freedom is important...
This is America... where you're allowed to have any and all the beliefs you want. You are also allowed to have ethical arguments, bible verses, logic, and any number of other things to back up your beliefs...
BUT...
... there's a point at which your abortion argument (that's generally split 50/50 nationwide) has to invariably supersede the other side before we're at a place this issue needs to be restrictively legislated into a law that takes an option away from any and all of the people.
Having the option, no matter how you skew the reasons for use (selfishness, punishment, financial hardships, irresponsibility, unpreparedness... whatever storyline you're painting)... is a double-edged sword. The same people arguing for anti-abortion are the same people arguing about the government's welfare system. Kids raised by impoverished irresponsible parents have a significantly steeper slope to climb to grow into productive members of society. All that set aside... once there is a law against it, it takes away the option.
Nobody is forcing women against their will to "murder" their babies. That is a choice a mother makes for whatever reasons she makes it. If you don't believe it to be an option, then nobody is forcing you to view it as one.
It's also a catalyst for stem cell research, which anti-abortionists like to paint as evil mad scientists playing God in a laboratory. It's not. My uncle had a rare form of cancer that was treated with stem cells and he's been in remission for 5 years now specifically due to that treatment. That "evil" research has helped a LOT of people, and there are a plethora of other applications they can be applied to that haven't been realized yet.
...Then there's the cutoff date/birth control thing... If you go far enough down that train of thought, condoms become murder... so yes, there is a point at which fertilization of an egg becomes a person, and "we", as a people, will never agree on precisely when that point is... so it's best to agree to disagree and let science determine a feasible point as a cutoff date.
It would do people well to mind their own damned business. I fully realize my opinion on this subject isn't the high road opinion and isn't going to be popular around here, but here's the typical "selfish" case... Some sixteen-year-old girl doesn't want to ruin her life and body because a condom broke on prom night. What gave you the right to force her to?
I've never aborted a child and I doubt I ever would, but having the freedom to make a choice is important to society. Yes, there is another option, adoption, that is held in much higher esteem... and that's just that... another option... that a mother can decide to go with.
As an American, I'll never in my lifetime vote to take away anybody else's freedom... whether I agree with the basis of it or not...
Anyways, there's the Devil's advocate take on it... I don't expect any likes on this one haha