Being late concerning your periods can be very frustrating, especially when you do not know what your reasons for a late period could be. When my periods started being late, I did not worry at first; however, when the next two periods did not show up, I began to be worried. I actually went and purchased a couple pregnancy tests, but all of the tests came up negative. After I found out that I was not pregnant, I thought that I might be having late because of stress. Thinking that it really could be stress, I made an appointment with my doctor. Doctor Davis went over all of the reasons for a late period with me, and decided that we needed to document certain things in my life over the next couple of months. I am hoping that my doctor and I will be able to figure out the various reasons for a late period.