Period only lasted for 3 days

Hello everyone, i have my period for more than 5 years now and it never happened to me before.Usually my period is 4-6 days long, but this time it finished on the third day. It wasn't feeling like something else , it was feeling like i just have a normal period as usual, cause it was bleeding normally and had usual pain in my stomach . Does anyone had this thing before? I don't even know if i should call it a problem :/