Here's an interesting blog in the New York Times, for a new concept [no pun intended].
In the past, when a woman told a man she had been impregnated by him, he had no way of knowing whether the claim were true. One could expect him not to be forthcoming with support or other financial contributions. Technology advances.
What's next? Requesting support for the mother-to-be, while pregnant, to cover the costs of medical care, pregnancy leave, etc., may be the next legal battle front in paternity cases.