I have a good friend who is a prime example. His girlfriend told him that she had a past injury that made her incapable of having children... And then got pregnant. Turned out she was lying, and just wanted a kid out if him. They split up immediately, but he abandoned career plans that involved moving and shouldered the financial burden of being a proper father, because he didn't want to punish the kid for what she did.
Very noteworthy to me is that I've never heard the word rape used once in reference to what happened.
I would put it in the "not rape but still shitty" category. There is a type of rape that covers this, rape-by-deception, but. I'd say if you knew roughly who someone is (like they aren't pretending to be your spouse in the old cliche) and you knew what acts you are going to perform, its not rape. Cause that would imply that you could give full, enthusiastic consent and then revoke it after the act, which is just... odd.
I do mean it when I say still shitty tho. Like I would define people who knowingly have unprotected sex with HIV and lie about it to not be rapists, but still committing a huge crime. Although that's an extreme example compared to what she did. I would say that lying about yourself to have sex should be some kind of sex offense, but not rape. Maybe a new crime. I don't think it should be the same thing as rape-by-deception because that covers impersonating someone and I'd say that is equivalent to other kinds of non-statutory rape.
The point I was making with my wall of text is that if you punish *her* for this, you're also punishing the child. And that's why I'm not sure what the solution is in this situation. I agree that she owes a debt to him and to society the same way that a criminal does. But like... what do you do? You can't fine her or imprison her because then you're hurting the child. Neither the right nor the left would be ok with forcing her to have an abortion, with good reason. You can't wait till after the child is fully grown to punish her because that's not how our and/or a sane legal system works. So the only options I see are: the government pays the child support, have the father pay the child support, or don't have any child support. Those are all shit options and we have to pick one.
Hence why I look forward towards a technological solution and hopefully towards changing social values turning this into an obsolete issue. I'd also say that in an environment with less income inequality this would be less of a problem because people would have more ability to absorb child related expenses. But then I relate income inequality to all issues.