It's too long. Normal menstrual periods do not last longer than 7 days. Possible causes / risks for excessively long periods include but are not limited to: uterine fibroids, polyps, adenomyosis, endometrial cancer, type I diabetes mellitus, bleeding disorders (l.E., von willebrand dz), clotting problems, infection, ovarian cyst, endometriosis ; hashimoto thyroiditis. Get it checked.
What does it mean when you have had your period for 2 weeks but the first week was very light. And a couple weeks before I had a very light period?
Many possibilities. If this persists and is bothersome, see your gynecologist. Irregularities in menstruation are very common and the causes are often transient and benign. Relax and if recurs, see doctor.