So I got my period according to glow 4 days early after having sex. I went on throughout the day with normal flow then the next day it was hardly there and brown, the next day it was even less then yesterday nothing. Now today I'm spotting, I hadn't put a tampon in from 9 to 12 then put one in and haven't changed it yet so idk what is going on? Has anybody had this happen to them with clockwork like periods?