Do you think I should get chicken pox vaccine asap even though someone in my house just got it 3 days ago?

It depends. If you had c pox as a child you dont need it but you will need the shingles vaccine at 55y. If you never had c pox you can get it. You are not going to get c pox from the person who got the vaccine unless he or she is the unusual one who will have a mild c pox due to vaccine.