I'm 17 and enjoy be have period since I be 10. Is it average to not hold a regular length after 7yrs?

Sometimes I wont get a extent for several months. When I do get them they second longer sometimes up to 2 wks. Is this something normal or should I be worried? Its completely middle-of-the-road at your age. I, too, started my period at 10 and it didn't start to procure regular until I was give or take a few 22 years old. Sometimes even after it regulates, you may own abnormal months here and in that due from stress and diet. I hope this helps
the womans body is a mysterious piece..i'm pretty sure it's normal if it's not accompany by other worrisome symptoms.