period question

Desiree
Hi everyone! 
Ok so I was on clomid for a few cycles and everything pretty much went normal, nbig changes. This is my second month off clomid and I got my period 4 days early (I'm always exact to the day) and for the first day I had brown spotting for the whole day and day 2 was regular period like bleeding and day 3 it completely stopped. Anyone else's period become random like this? Should I worry?