Day 29 and spotted please help!

okay so at like 9am went to bathroom and wiped and i saw red blood...oh my gosh am i thinking WHAT! i am not suppost to start til 31st...so...i used tissue as a tampon went in to the bathroom 15 minutes later and NOTHING! so what do u guys think???I am 14 d pIUI and.....i am SCARED!!!! BUt i cannot test yet i just cannot!