You may find that he won't change his mind until he is confronted with the reality of life with a baby and realises that it won't necessarily be all that he thinks it is... And that's something to keep in mind as well. I know it's stressing you, but keep in mind that everything will change when the baby arrives, and even though he can be completely determined about what will happen at this point, his mind will more than likely change then as well.

BW