so, i ddnt get my period this month.. i dont know why. i am 4 days late, and lately i have been getting it on the DAY im supposed to. do you think it could be from stress? ive been waking up at 7, which i hacvent done since high school 5 years ago. so my body is on a different schedule than normal, and my job is somewhat stressful. i dont know, i just get worried.