How would the crime be defined?
I didn't say how it should be defined -- only pointed out two ways it could be defined.
And, since the whole issue is hypothetical, you're free to define the crime however you'd like.
There are plenty of places where abortion is against the law, easily defined, punished. Also in human history of course. I don’t know why so many are aghast at the notion. Of course if you kill an innocent person on purpose you should be punished.
Post-abortive men and women may be reading this. If so please know I don’t hold you in contempt. If you have repented you are forgiven and it is not the unforgiveable sin. We are talking about civil law, here.
You can’t make something illegal and then say there is no punishment. It’s really not illegal in that case.