redundancy and tax creds

[Really1]

Im a single mumma who has recently been made redundant. Im currently looking for a new role and may possibly have one in the pipe line but its not for certain.
How do tax creds work in the mean time? I currently get child tax credits for my two children so do I have to call them and let them know im out of work now? Will I still get tax credits? I need to try and work out how long I have to find a new job!! x

[Onmyown3]

I'm not sure but I know there is a website called entitledto.com but your change of circumstances details in there and it will tell you x