I shot two rolls of film for my photography class at a local cemetery yesterday and got some great shots. My instructor has always emphasized that "sometimes things just don't go as planned in photography," but I was still upset this afternoon when the two rolls I developed didn't come out. After developing and fixing the film, I took a look at my negatives only to find all of both rolls were completely transparent. They look just if they haven't been exposed. I looked back at what went wrong, and I don't think I developed incorrectly. During developing I was talking to a friend, and he verified that everything was done in the proper order for the proper time. This leads me to think my film is either drastically underexposed or weren't exposed at all. The thing is, my shots were at a variety of exposures and some were underexposed and overexposed, so I think something would have come out. This leads me to think the camera didn't record the shots I took, but for two rolls of film? What went wrong here?