Gail...
Have you contacted Shelter, the charity that focuses on housing the homeless?
Also, the Citizens' Advice Bureau should be able to point you in the right direction, particularly in terms of how you stand legally. Irrespective of your citizenship, I do not think your husband has the right to kick you out of the house!
But for longer term affordable housing, look for Housing Associations in your area. Again, Shelter would probably be able to advise you if you can't find them in your phone book.