Bob_D is correct. Though Cancer can be a Hereditary disease. So it still doesn't hurt
to do self examinations on yourself every once in a while. The Internet can be very
helpful on how to do these self examinations.
I used a poor choice of words earlier. At any rate, cancer is not an infectious disease, and you can't "catch" it.
Cancer is the uncontrolled proliferation of mutated cells of any kind. I have never heard of anyone catching cancer through the transmission of bodily fluids, including blood, so I believe you have nothing to worry about.