HELPPP!!CycleQuestions

Cece

my cycle is normally 6-7days most of the time six and this time it was only 5 days long I started the 14th ended 18th had sex the 19th haven’t had sex since because the 20th I literally had a tiny gush of bright red blood come out then went away now today the 21st of august is the same thing like yesterday and I just checked and there’s nothing on my pad or when i wipe what could cause this “ spotting “ .