Period.

Okay, So my period is normally moderate to heavy. Lots of clots and I have to use super plus tampons, heavy flow pads and such. Well, my last period was late and when it did come it was sooo light. I was barely spotting and it was nothing but lightish- dark brown blood with a smidge of pink. I didn't cramp or anything like I normally do. This lasted 4 to 5 days. Today I started my period, and it's very light. Dark brown blood, and a little more regular red blood and a bit of clot. No cramping. Is something wrong?