I'd advise going to a computer outside the home so that there is no trail, say, at the Public Library, and Google Women's Shelters Chicago
Or you can ask the librarian -- they can provide resource info.
You can also go to the cops -- before or after.
Another suggestion, begin to get together your money. Transfer funds if you must, give them to a trusted friend or family member to hold, whatever. You are gonna need $$ and this is the time to grab it.