if you just started within a year its normali started mine at an old age at 13 almost 14 but i was on mine for 3 weeks straight but yeah get a calander and go to the doctor when i had gone they said i was just irregular and they gave me one
How old are you? In your teens, that's normal. It should regulate once you grow and your hormones settle down.
Have you actually charted your cycles? Get a cheap calendar book and start recording your start and stop dates. Then you can take it and go to a GYN appointment. It may just be that your body is programmed for once every 45-60 days instead of every 30 days, but it could also be a hormone imbalance.