Even though the young parents are not officially married, you can see the love is there between these two. Michelle and Heath met on the set of Brokeback Mountain and they were husband and wife in the movie, but in real life they are just opting for having the kid first and seeing how everything else goes. So far they seem to be happy. They are at the Gotham Awards in NYC which is why I think Heath missed the LA premiere if BM. Both new parents are nominated for Independent Spirit Awards maybe that is another reason for their big smiles.
Source: Superior Pics