help please

Nikkita
So I spotted on 16 September for a couple of seconds. Then I wiped myself in got light red blood then after that I got no more blood until 19th witch is three days later and it's been spotting light red blood and brown looking on the pad thus is on and off this makes the 2nd day now my cycle ain't suppose to be here until the 22nd of September I took a clear blue test in the evening yesterday and got a negative in I'm still spotting pink and brown it comes and go right now I'm not spotting help please??