Im a female and have never had an orgasm-why?

well fist some girls just wont orgasm when they are having sex but proberly the best way is for your boyfriend to explore your body and see what turns u on also fingering is really good it could be your not relaxed or your not in the right mood and u got to say when you are having sex that your going to have one cause if you think ow im not going to come u wont get anywhere some girls are just harder to please then others so it takes time and different perssitions try them because it could be the way u are laying