As difficult as this is for you, and there is no doubt that this could only be the most trying time in any person's life, it must be more difficult for your child's mother. There are any number of real and deep emotions hitting her. She needs support more now than at any other time in her life, even if she denies it, fights it, refuses it. She must have someone to lean on that can carry her emotional state, and with the resolve to save her, the tables will be turned and she will save you as well.
You need each other more now than ever, otherwise the hurt already manifested through the death of your young loved one will turn cancerous. Friends and family will comfort you as best as they can, but when they leave at night, when the dishes are done and put away, the only one you will be left with who can truly understand your pain, but has to deal with her own in the course of things... is standing right in front of you.
Be strong only when called upon to be so.
Is this a Fabreze Moment? C.Y.D. 2¢