Sometimes, you may see brown spotting instead of your period. There can be several reasons behind this, most of which are harmless.
Implantation bleeding or Period?!!!! HELP.
Spotting vs. period
Brown spotting when I had my period 2 weeks ago? : r/Periods
Natural Cycles - Should I mark this as my period or
Brown Discharge Before Period & How to Stop It - Gynecologist Backed
Why your period blood is brown on the first day
Brown Discharge Before a Period:12 Causes & What It Could Mean
Brown Vaginal Discharge: Causes, Concerns & When to See a Doctor
Periods Facts