I think I'll start a spinoff to the "Pro-Life" movement.

I'll call it "Pro-Fatherhood."

The central principle is this: every man will be legally required to contribute financially to every child he has ever sired, full stop. Since life "begins at fertilization", that implies that every man will be retroactively billed for expenses incurred by a woman in pregnancy before the child is tested to know that it is his.

Be a big hit, dontcha think?