Question about pension credit?

Ok so my mum was receiving income support and I always wanted a part time job whilst at college/university but couldn't because my income would have been deducted from my mum's income support but now she's going to be receiving state pension + pension credit (for a married couple). She also gets disability living allowance as she has cancer. My question is, will me getting a part time job affect any of her payments? From what I've gathered household income brought in by me from say, a part time job, has no affect on pension, pension credit or disability allowance, but I'm not sure, so any help would be much appreciated.