I use to have a distinct period. My cycle use to be 29 days and last 6 days. Ever since I thought I was pregnant and stressed myself to the point I was late and ever since then my period is messed up. Last month I had a 28 day cycle and this month I had a 34 day cycle and it's just all over the place. It's usually 30-34 days and I can't pin point what exactly day it'll be. I never know if I'm late or not because like this month I had a 34 day cycle and I started my period today! Can stressing because you thought you were pregnant really throw your cycle out of whack?! That was months ago and it's still all over the place. It is usually 30-34 and usually ends up being a 34 day cycle but sometimes it changes. Last month I started my period 4 days early which gave me a 28 day cycle.