How to deal with Stress and my schedule at once?

By how long can a change in schedule or stress delay a period?

• my schedule has changed, i used to go to bed around 12 or 1, and wake up around 9 or 10 but since going back to school i go to bed around 10 or 11 and i wake up at 7. not really much of a change but how long can it delay my period?

• Answer:

  Stress can throw your Periods all over the place but not a schedule.