I think abortion is ok as long as the women agrees to it without coercion. Even if the fetus/embryo is equivalent to being a person, to me, that is no different than finding out you are spending your money and effort to feed, clothe and shelter someone you don't want. Sorry, but even if that person would die without your support, you are not obligated to support them. Morally, I think a person, unless they profess hardship, should feed and shelter someone who would otherwise die, but, in my view, that is different from what should be legally required to do.
Now, I guess one can make the argument that if someone got pregnant when they were careless, there should be less acceptance of allowing them to abort, and I can somewhat see that point of view, but in the end, you are telling someone that they have to take nutrients from their own body and nourish a 'person' that they do not want to feed, and protect with their own body someone they do not want to shelter.
I really don't want to think a women's right to control her own body has been reduced to her uterus. Women are not incubators and as long as she has a sound mind, I don't believe people have the right to tell her what she can or cannot do with her body.
Also, I would like to add that since the development of the nervous system does not occur until 2 weeks after pregnancy, I don't believe it matters whether abortion occurs for whatever reason before those two weeks---not that this idea will actually change the landscape of abortion politics but since there is no nerve cell, there is no brain AT ALL, the embryo is no different than an blob of tissue---like a baby without brain, if you will. Society, after all, have no problems with letting a baby without a brain die, I don't think that's any different than letting a embryo die before a brain develops.