The reasons given for abortion are very telling. 95% of all women who have abortions cite the reasons for their abortion as it being inconvenient for her in one way another, such as it interfering with school/career or that she just "isn't ready". Less than 1% of abortions are due to rape/incest, and less than 5% due to health reasons with the mother or baby. Yes being raped sucks, but does murdering a baby make it all better? There is a huge line at adoption agencies for babies if you get raped and are unable to care for a child.
I do think that a woman should be allowed to get an abortion if it can be proven beyond a reasonable doubt that the birth will cause the mother permanent severe injury or death. I might even argue it would be her duty to save her life if she has a husband and children to care for, however, in modern countries the maternal death rate is extremely low. < .01%. This statistic also includes maternal deaths that were due to unforeseen complications, as well as deaths days and even weeks after birth. The actual number of cases where maternal death is predictable is almost zero.