Period issues.

Danielle
So I am having some period issues. Normally my cycle lasts 4 days long. I had my period on November 6th-9th. I had very minimal dark brown spotting on November 13th-14th, and on the 26th I lightly started my period again. I am still currently on my period and it has never lasted this long but it is very light without any clotting. Should I be worried?