I was supposed to start my period on the past Friday when I had my Graduation, but I got it on Sunday instead. Only, it was dark and lasted a day until it ended. What could this mean?
brownish bleeding suggest it is an old bleed and which was stored in your uterus for some time and then discharges ,
Blood turns brown due to acid hematin formation,
This is possible in a condition called hematocolpus where there is a conceled bleeding and blood is stored above imperforated heymen or slightly perforated hymen,
more details will be appreciated OT for more guidance,