Last month I was a day late for my period my boyfriend and I made love then the next day AF arrived the first day was a pretty light period second day it slowed down by the end of the night and the third day I start to spot then on the fourth day there would only be a drop of blood on my tampon I've always had a 5 day flow but there wasn't any blood the fifth day. Now here it is October 1st AF was suppose to arrive September 16th which makes me 16 days late all pregnancy I'll taken were negative. What should I do?