I just spent the whole weekend taking a roll of 36 photos. When I got to my last picture, my camera did not rewind my film correctly. I opened the back, and my film was still unwound. I closed the back (mistake) and the film ended up reloading into my camera. It said that I had 36 pictures left. I then manually rewound the film (pushed the rewind button), and this time, it was correctly rewound. However, did opening the back and exposing my pictures ruin my whole roll? I am relatively new to film cameras. I am taking a photography class and this is my first time using a film camera.