Remember you don't have to divorce him right now! You can take a break from seeing him, or limit your interactions, give birth, do some DBing (if you feel like it) and then I recommend waiting no more than 6 months post birth before you go dark or tell him you want to D if he still hasn't come around. I think for me, if I started DBing or found DB right away after S birth, I would have been done earlier! Like January or February!
I think with all of us whose H's left when we were pregnant- they think we will always be there because we are "stuck" so to speak. None of our H's have rushed to divorce us,either. Sure, mine has brought it up (as did yours-but he wants more time right?) but has yet to follow through.
And wow- your poor grandmother! What a tough lady to endure all of those broken bones!!
me,34 exH,34 S,16 months S:3/31/09-left for OW started DBing 10/09 d final: sometime 10/10 current: http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2022856&page=1 met in 2004