Hi, im seventeen and really knew to all this but im 4 days late and out of my right now.I was due on, on the 9th and still no sign of it coming. Im so scared especially with being so young. Im very careful and made sure i took precaution and contraception but i know it dosent always work. Ive take 4 test and there all negative, why isnt here then? Im never late if anything early. If anyone can help it would be a real help