Ars is wrong about you will not be able to enter usa in life time.  it depends upon how long you overstayed here.  i thought you will get at least 10 days to leave country after your spouse is fired from job, meaning his/her h1b is no longer valid.  yes you have valid reason because people do need time to manage and leave country.  but you need to start soon.  students get 2 months of grace period after OPT expires, which is basically time for them to pack bags and move, which is i guess reasonable time.  but this h1b is bit tough on that issue i guess.