AF only lasted 3 days WIERD ??

Tammy
AF Came Thursday which is the 11th and ended that Saturday I guess. I wore a tampon those 3 days but I saw that there was no blood so I took it out and it hasn't been any since my period normal my is 5 or 4 days but has been 4 lately. What do you all think ladies ? Any advise or anything similar ?