Hello

I am a 37 year old female. 

I'm really concerned because quite a few members of my family have had cancer. 

My mum sadly passed away a few years ago when she was 62. She had breast cancer. She was originally diagnosed when she was 54 and was given the all clear but sadly she was diagnosed with stage 4 breast cancer in her stomach area and then she passed five months later. 

My grandad had prostate cancer and passed at 79 and his dad and brother also had prostate cancer. 

My grandads sister was diagnosed with breast cancer at 63 and shes in her 80s now and fine. Her daughter was also diagnosed with breast cancer at 45. Her daughter lives in America and she had genetic testing and nothing came up. 

Now my uncle (mums brother) was diagnosed with pancreatic cancer last year. He was 58 when diagnosed. 

I have spoken to the genetic clinic and they said my risk works out on the lower end of moderate risk so I can have mammogram from the age of 40. However they won't do a genetic test unless a relative who has had cancer gets it done. They think its unlikely to be a particular gene but I dont understand how they can say that. 

I know no one can give me the answer and I try and hold on to the hope it isnt a gene because my mums cousin had the genetic test. But can this much cancer in one family on the same side really not be a particular gene mutation?

Thank you for reading