Unusual ???

My periods aren't regular but never over 7 days or less than 5 days. January 9-15 was a period (heavy & 7 days long) February 20-now (really light & more than 7 days ;: very unusual for me) but today being the 8th day the blood flow is a little more and turning more red at first it was a mix between pink, brown & red. I'm so confused. Idk what to do :(