Miserable
I assume you receive DLA or PIP?
Your husband's CA will be deducted from your ESA however you will now receive a Carers Premium on your ESA resulting in a net increase in your money.
Your Housing Benefit will take the Premium into account as well but I would not expect this to result in a change.
You need to inform the DWP that your husband is now receiving the CA for the Premium to be payable.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems