We tend to overlook how difficult that first Christmas was. He is going to believe Mary is pregnant by God? She is having to deal with the stress of this knowing that in that 1st century culture, the punishment for a young, single teenage girl to come up pregnant was to be put to death. Joseph is dealint with feelings of betrayal and the wise me are confused -- they're trying to find where this baby has been born. These were the joy killers of their day and ours.