Why/how a pregnancy started (consensually or not for example) or the motivation behind making that choice (just don't want a kid, some genetic diagnosis, etc) are irrelevant. If abortion is bad, it shouldn't be done at all. If it's not bad the reasons behind it should not matter
Always breaks my brain when people argue abortions in case of rape or incest are OK but otherwise a woman should be forced to carry a pregnancy to term, as if it matters to the potential child in the end. Either you're killing a person or not. I'm pro-choice, so it's my opinion that you're not, but the wishy-washy middle ground position is untenable to me.