Hello, i have not had a period in a few months. what does this mean? no, i'm not sexually active. thanks

No menses. : For a few months, this can be normal variation, with a negative pregnancy test. After six months, this is called secondary amenorrhea and needs to be looked at. See https://www.nlm.nih.gov/medlineplus/ency/article/001219.htm for more information

Could be...: Could be anovulatory cycle, irregular ovulation or pregnant. If you are not sexually active pregnancy would (obviously) be impossible to unlikely. See your doctor if no period in another 4 weeks. Best!