Stress causing delayed menstruation - Online Doctor Chats

Doctor :   Hi
Doctor :  
How can I help you?
User :   i just wanted to know if skipping periods were normal if your certain you arent pregnant?
User :   the last time i had sex was a month or so ago, and i had my period last month, but this month i didnt get it
User :   its about a week late..
Doctor :  
First prefer testing with Urine preg test
Doctor :  
if you are sexually active
User :   are there any other things besides that? i dont have any of the other pregnancy symptoms..
User :   i have been working out alot lately, and i did just start college and ive been pretty stressed..
Doctor :  
Yes
Doctor :  
Stress couild be the reason for delayed periods
User :   so should i expect it soon? i felt the cramps the days i was suppose to have it but it didnt come
Doctor :   I think you have to wait
Doctor :  
for some more time