Aww Drac.  I hope you cheer up soon.  There are a lot of reasons a woman would have a late or skipped period.  A young woman may not be so regular, but I am sure she knows if she is or is not.  Stress is one of those factors too.

 

"Stress can also affect your period. If you are going through a particularly stressful time, your period may stop or change from what is normal for you." http://womenshealth.about.com/cs/menstruation/a/affectperiods.htm