Hi
I didn't see this thread until now and read each page. I know how it feels...the relief that your loved one isn't suffering and the emptiness you feel because you miss them so much and the sadness you feel too. My dad was in at Chinook Hospice last year from Dec 22, 2008 until Jan 13th, 2009 when he passed away. The last few days were the hardest because he became totally unresponsive and we knew it was coming.
Your family is lucky to have you - you are lucky to have each other. Your son will have wonderful memories that you will pass down. I know it isn't fair, and I hate cancer too. But hang in there...it does get a little easier as time passes, although I still get sad every other day when I hear a song on the radio, read a funny joke (my dad had a good sense of humor) or need help with something practical (my dad gave the best advice).
Hang in there..I know its hard, almost nothing can be harder. Just be thankful of all the wonderful times you did spend together as a family and all of the happy memories you had