Hello. Some background info on myself first: I'm 21 years old. I have not been sexually active for several months now. I had my period last month on the 29th of August and was expected to get it this month on the 30th of September. I have missed a month before but it was around the time I first got my period at age 13 and I know that's pretty normal at the beginning. My schedule is pretty irregular so I use the ClearBlue Cycle Calendar to track my periods and it has, thus far, been very accurate within a day or two of it's prediction. I did start a new job on the 18th of September and I do believe that is the cause of my late period as it's the only change I've had in my life that's a bit stressful. I know I'm not pregnant because I haven't had sex for several months. I'd just like to know how i can make myself relax enough so my period comes even during this new job? I'm in training so it's a lot of stress for now. Any help is greatly appreciated.