As a result of the moral purists refusal to recognize this fact, we have an elected government full of Satancrats who send a ten thousand times more infants to slaughter than could ever be done with a rape exception only.
The rape exception exists because many cases are like trees falling in the woods. We often just cant know. A woman may be raped with little evidence of violence because she did not resist or because the rapist did not behave brutally. We can be sure of is that a woman is pregnant. So the law allows the abortion for the same reason that it allows exceptions of other sorts: we should follow the evidence and when we no longer can , turn back.