Am I wrong for wanting to stay home for thanksgiving ??

This year I lost my nanny which is basically my mom(she raised me from the day I was born) this will be my first year without her. My husband wanted to go to his cousins for the holiday but expect me to cook as well. I rather just be home cook and enjoy my kids. I don’t really want to go out and I haven’t gone out for the holidays in years. I enjoy my own family time on these days and the comfort of my home. I know I won’t enjoy it. I would of decided to go but, cooking the food is hours of work and cleaning up (I do this all alone no help my kids help with certain things but I do most the work no partner doesn’t help he just gets to relax) I don’t want to hurt his feelings but it’s just I don’t feel in that type of mood another time will be fine but holidays I just want my small family. Should I just go and suck it up for him? Or tell him I’m not up for it this year?