pip and disability premium

hi mods, i am on esa support group for many years and also on pip standard daily living, and now my wife has been put on pip standard both components and has also been awarded sdp paid with my esa payments approx £66 weekly, she is also my carer and so gets carers allowance for looking after me, am i right in thinking i would also qualify for a sdp if she was not claiming carers allowance and if so how would i change my claim so i remove carers allowance and get a sdp payment instead, i ask this because as you know the carers allowance is also taken off my esa as its classed as an income, and hopefully by doing this my benefits would increase by the sdp amount ( i think i am right ) i hope you can understand what i am getting at , many thanks bb

thank you both for your reply's, will the national insurance credits not continue as my esa claim is a joint claim and i have passed my 35 years contributions, yes gary it is only me and my wife at home, i am confused now as to if it will affect her state pension award , many thanks bb.

thanks gordon, i think i will write to dwp for a pension statement for my wife to see how many years credits she has to date , many thanks bb.