Skipper55- if your library has a Findmypast subscription it should include the 1939 register.... at least my library does.
When you get to the free preview page ("xxx is also in this household, plus 2 other people" etc.) click on "unlock this household", then my library's version asks if you want to log in or continue as guest (if you have a free account but no subscription you can log in and it won't ask for payment, I just click on guest), then you should be able to see the record. If not, ask the librarians why not!