Got my cycle mon the 4th and it stop on the 6th my cycle are normal 6 days long never stop but this time didn't so when I use the restroom it brownish?

Check a test. If your period is abnormal and you have been having unprotected intercourse, start by doing a pregnancy test and, if it is negative, repeat it in 3-5 weeks. It could be that it was light due to stress, medications, or illnesses but it could also be some of the normal variation from cycle to cycle. Hope this is some help.
Many factors . Many factors may impact a menstrual cycle, such as working out more, being under stress, or pregnancy. Often, spotting appears as dried blood. .