FWIW, I oppose automatically designating the spouse of a pregnant woman as the child's other second legal parent, though if it will be done again, it should be done for both same-sex and opposite-sex couples.
And I would be absolutely delightful to see the current child support laws changed. If conservatives care so much about people breeding out of wedlock, then changing the current child support laws should seem like an extremely high priority for them. But they're not doing anything about this so far, unfortunately.