I'm sorry, yes, there are cases where abortions take place alone, or with someone who is not actually a doctor at all, or with a doctor who is, for some reason, willing to do such a thing for reasons that aren't what we'd think of as medically necessary or justified.
You are aware that there are people who attempt to kill infants? Mothers, or people who bury them in boxes, there are plenty of horrific stories like this even if it is uncommon. There are people in the world who are horrible criminals who do unbelievably bad stuff, including for money, and including to children and infants.
There was a horrific case of a doctor and his staff in the US a few years ago who ran an abortion clinic. It was not only performing the most horrible kinds of procedures, it was doing them unsafely and other very weird gross stuff. Now - they were in the end caught and reported because of the lack of sanitation and dangerous practice, as well as breaking the law and killing babies even after birth - but it's not unthinkable that a clinic with the same lack of ethical standards could operate in a medically safe way. That's not just one person, it was the doctor, his wife, and a number of staff that he employed.
I'm not sure why this is so difficult for people to believe, we see monstrous acts in the news with some regularity.
We don't see people arguing that cannibalism shouldn't be illegal because it rarely happens, or someone might be in a plane crash in the Antarctic where it is the only way to survive and also quite harrowing for the person engaging in it.
It's like, because you can put yourself in the shoes of a sympathetic case, you can't imagine that there are people who might not fit that profile.