Well I know losing a husband is nothing like losing a grandpa. But when I lost my grandpa I couldn't afford to lose any work and so had to work the next day after finding out the news. If you aren't ready, don't go back. Instead of dealing with my emotions and being able to grieve I had to turn it all off and become numb so that now I'm in a much darker place with my grieving than I feel I would have been otherwise. I've had no break from work and seen where it's gotten me, I don't want others to go down that road. It's dark and scary and it changes who you are. Just be careful. Take your time since you are able. There's no rushing something this delicate and sensative.