Villette, this sounds horrilble I KNOW but isnt it so that we all live on borrowed time? we never really know what will happen tomorrow or the next day, i cant answer for u, but i know what i would do - life brings hope and i think that a new baby will be good for him, sounds like he really wants it and i know u have love for more, as u mentioned "money is an issue" theres always a solution to any problem and im sure deep in ur heart ur longing for a little baby to add to ur beautiful girls, they too will be proud to have a new baby brother or sister.
Please let us know what u decide
Good luck