Question
I understand that only men are required to keep the feasts in the Torah, but I also understand that Passover is a family-oriented occasion. Those who are "unclean" may not keep the Passover. According to my understanding, a woman when niddah is considered ritually "unclean," but she can prepare food for her husband and family to eat. I am wondering about a woman while niddah keeping the Passover. Can she be present and participate?

Question
My wife past away and wanted to be buried close by so we can visit the gravesite. There is a family plot on the opposite coast where I’d like to be put to rest when my time comes. She agreed to follow me there at that time. Is it allowed to move after you’ve been placed to rest?