Hi! Good evening.. I just want to ask if there's something wrong with my period cycle or is there any problem with it. Last August 20-24 i had a period. And then September, there was none. And then Oct 11-17, i had a period again. And also Oct. 31 only.... Today, Nov 1, I don't have it which makes me nervous about my health.. Disregard with being pregnant coz i do not sex.. Thank You...