Many people feel that the Roe V. Wade decision (and Doe V Bolton) ruled that the unborn baby was not human and this is not what happened.  Actually, the crux of the ruling was that some members of the Supreme Court (under pressure from various financial interests which wanted to exploit a potential abortion market) ruled that the writers of the Constitution did not include unborn babies as covered by "the right to life, liberty and the pursuit of happiness". And this effectually rendered all anti abortion laws (and also the Hippocratic oath) as nul and void.

It was a very close decision (Roe V Wade) like 5 to 4.  Some Abortion providers like Dr Bernard Nathenson who advocated against abortion being illegal, were ready to go with large abortion businesses (Nathenson who owned 5 abortion clinics converted some years later to pro life AND the Catholic church).

We know that there were many individuals not considered to have full rights under the constitution. These individuals included African Americans, Caucasian indentured servants and women.  In fact, one history professor I had in college opined that the writers of the Constitution ONLY included about 5 percent of the adult male population of the USA as having full rights.

However, since all of those writers were deist (i.e. believers in God) and most of them, Christian, it is likely that unborn babies WERE NOT included in having the right to life since abortion had been considered a heinous act by Christians for centuries, since it was outlawed under Constantine in the 4th century. 

However, the Hippocratic oath predates Christianity and strictly forbade physicians from doing abortions (after Roe V Wade, physicians no longer could take this oath and that caused other problems in medicine, opening the door for surgeries which partially destroyed parts of the body because physicians also no longer promised to "first do no harm").

Ironically the Dred Scott decision which was reversed eventually, was MORE constitutional than Roe V. Wade because there is good evidence that the writers of the Constitution DID NOT include African Americans in the "right to life". However, the human rights issue of rendering Americans as not having rights, trumped what the writers of the Constitution felt.

The Dred Scott decision resulted in the deaths of hundreds of slaves but the Roe V Wade decision has resulted in the deaths of over 50 MILLION Americans (unborn babies) - more than all the wars of the 20th century put together.

The Supreme Court is still divided on Roe V Wade but some politicians are "owned" by the abortion industry as they paid to help elect them to office and the industry expects in exchange, that these politicians make sure abortion stays legal.

It should also be noted that Jane Roe (Norma McCorvey) who was promised an abortion by her participation in Roe V Wade, never got her abortion (the case took longer than her pregnancy to get to the Supreme Court). McCorvey had a baby girl and felt she had been lied to by the pro abortion activists.  Later she met Randall Terry, founder of Operation Rescue and ended up becoming pro life.  Both she and Terry eventually converted to the Catholic church and McCorvey had dedicated the rest of her life to trying to get HER decision reversed.  Below is a video of McCorvey telling her story.