If your only main argument supporting the legalized murder of the unborn, is that the woman has the sole right to her body......
.....why does it matter to you if the baby is human, or not?
In other words, why do you go out of your way trying to prove the unborn is not a human being?
I did not read all the pages of this thread, so I'm sorry if I repeat anything. I'm jumping on just to give my perspective on the OP's original question. This is gonna be long. If you don't like that, then don't read it.
Honestly, it doesn't matter to me whether you consider a non-viable fetus human or not. My pro choice stance remains and here is why.
Many people do not believe a fetus is human. Just because something contains human DNA does not make it a human. We all shed skin cells containing our own DNA every day. About 50% of all fertilized eggs never implant on the uterine wall and are flushed out with a woman's period. Should we have a funeral and report possible human death every time a sexually active woman has her period? Most people think not. Even most pro-lifers agree this is ridiculous. I personally am of the opinion that an apple seed is not an apple tree any more than an embryo is a person. Yes, it has the potential to become one, but is not currently. Many pro choicers will state their position on this to help pro-lifers understand that if we don't see a non-viable fetus as human, we don't see abortion as murder at all.
I am also aware that the moment when a person becomes a person is a matter of opinion. Religion and personal belief plays a huge role, and I can respect that. I can understand why someone might think a fetus is a person. The potential is there, where there is no potential in a shed skin cells, and I'm not going to argue with them. But if we play by those rules abortion should still be a choice to a point.
Even a born person is not considered alive if they don't have measureable brain waves and cannot sustain vital organ function off of life support. If we treat an unborn fetus as any other person they are legally dead until they reach at least 20 weeks gestation. Some medical journals identify this point as late as 25 weeks, at or near the point if viability.
If you still believe a fetus is human and the potential for them to develop brain waves, and therefore consiousness, makes halting this process, and therefore abortion, wrong, then so be it. I will not argue this either.
Then you must think of any other living person who has the potential to continue life with the help of another. Forcing a person to donate a piece of their liver or a kidney to save the life of another is not legal, and very few argue for it to become legal, because we all have bodily autonomy. We must volunteer our bodies to help others. We cannot be forced to undergo risky medical procedures even if it might mean life for another. Even in death, we or our family members must make a willing choice for us to do so.
How does this relate to pregnancy? Pregnancy and childbirth is a sacrifice and a risk. People say abortion is doing something while letting the pregnancy continue is doing nothing, justifying the stance by saying all a woman has to do is nothing and she saves the life inside her. Pregnancy and childbirth is definitely not doing nothing. It is a huge undertaking, physically and financially.
Even with modern medicine 700 American women will die from pregnancy complications each year. More than 50,000 will suffer devestating complications resulting in things including permanent kidney or brain damage, heart attacks, and infections. All statistics from the CDC. Less than 10 American women die from legal abortion annually, sometimes none at all, depending on the year. Legal abortions carry much less risk than carrying a pregnancy to full term. Obviously illegal abortion is much less safe, but legal abortions performed in controlled environments by qualified medical professionals are very safe and minimally invasive.
Even if you don't have any medical complications, pregnancy can be financially devistating. Medical bills for a normal vaginal delivery are often over $5000 out of pocket for women with insurance, and can cost over $30,000 for women without insurance. Most employers do not offer paid maternity leave and women are often off work for 6-12 weeks. All those missed wages on top of the medical bills, can be a big problem. The cost of a first trimester abortion is a one time cost of $350-950 and you're back to work in a day.
Whether you believe a non-viable fetus is a person or not is irrelevant. You can't force someone to sacrifice their health, financial stability, or possibly even their own life for another. It does, however, make that pill easier to swallow if you don't think a non-viable fetus is a person.