am i entitled to benefits?

hi my wife works 25 hours a week and i stay at home looking after our 2 year old, we get child tax, working tax, and HB atm was just wondering am I entitled to any type of benefit (im thinking income support).

Reason im askin is last year we had money to burn, we had my wife doin 40 hours a week in work and we had 600 a month from tax credits.

This year my wife dropped to 25 hours a week and our tax credits are at 350 a month and we have only seen a minor increase in our HB and Council tax benefits (10%+30%)

i have tried the benefits calculators and i cant get my head round them, i just need someone to tell me if i am entitled to anything

thanks