Period

Liz
Hi everyone-
So I got my period on may 27th (light) 28th (Mild heavy) 29th (very light/ basically no period at all) and today I have nothing. My period usually last about 4-5 days and it's always pretty regular and it's usually heavy for 2-3 days and then it gets really mild. Is this normal? Basically my period lasted about 2.5 days this time. I'm a bit worried, can anyone give me you experience / feedback to this? 
Thanks!