Looking for Solomon

Was reminded of the King Solomon fable--albeit the rather tenuous connection and the gender switch--when I read this news report and the comments that followed:

http://news.scotsman.com/index.cfm?id=553622007

So, who does the baby belong to and where do the genetic footprints stop? Say pink, say blue, but all one can think of is what if the woman had simply told her ex-boy friend she would have the baby but would give a written undertaking that she would not demand any maitenance/child support from him, thus ridding him of any legal obligation for a child he does not want to share?
This is where the thin line between ethics and self-righeteousness blurs....