Hello Dear,
yes this will happen sometimes. Even i experience the same. So don't worry. Try to relax your body. Take proper diet food. Do regular Exercise. Exercise will help you to main you periods cycle.
Take care
um nt realy stressed. Can thr b any other reason for it. Plus i had couple of wet dreaming before actualy my period started. I know this z kind of weird bt it hapend
Maybe your stressed out? try relaxing i a bit enjoy yourself hun (:
Women's cycles can vary each month and that can be normal. If your cycles continue to change, check in with your doctor, but variations are normal.