I've never had someone close to me pass away before. I've been to funerals (more than three, I believe, though perhaps it was more along the lines of two funerals) and looked at a deceased person, but it's nowhere near the same exact thing as what you're going through. Maybe to cheer you up, you can find someone to hang with on Mother's Day. A movie or some other recreational activity might help take your mind off of things.

EDIT: I think me posting cut Beta's post out; he said something on the last page before this one LeeRoy, in case you didn't know.