I would also allow (but not recommend) abortions in the event of rape, or to save the life the mother.
I would NOT allow abortions in cases of consensual incest. The liberal scare tactic of "what if a girl is raped by her own father?!" is already covered under the rape exception. Any other circumstance of a pregnancy would result from a consensual incestuous relationship, and a woman arguing "I slept with my second cousin, therefore I want an abortion" wouldn't sway me. The "potential generic defects" due to incest is a red herring as well. Studies have shown a child is far more likely to have generic problems when a mother over 40 is pregnant. If it's allowed for incest because of "potential" generic problems, then you'd have to allow all women over 40 to get an abortion on demand. Also, we're talking about potential generic problems. Most of these women demanding an abortion are pregnant with perfectly healthy babies, they just want to be spared the "embarrassment" of being pregnant and answering questions about who the father is.
Every time this is brought up I think back to a 1996 Clinton commercial (I was 12 or 13 at the time, and Dole was actually trying to win Illinois) I remember where a “lifelong Republican” mother and daughter are voting for Bill Clinton cause mean old Mr. Dole was against abortion “even in cases or rape or incest!!!”. I agree it’s redundant to mention incest cause they mean fathers and uncles raping girls not 2 consensual adult cousins or a creepy pair of siblings. As you say they just use it to scare people.
I would allow it for rape as well. Terrible situation, but I have to respectfully disagree with those who would make no exceptions. With a rape/life of mother (who’s against the latter? I don’t think anyone) exemption about 50% of America is pro-life.