He has to take blame for this too.
I would definitely like to see a disincentive government program created to discourage out-of-wedlock births for both the mother and father of the child.
The disincentives could range from fines to jail time, sterilization, taking classes on the effects of out-of-wedlock births and their costs on society, taking away the child and putting it up for adoption, etc.
If the parents of the pair that had the child want to take responsibility then let them. I would just make sure that the courts keep them accountable for that child until that he/she turns 18.