I'm wondering if I'm pregnant or is it only pms I had sex on the 29 of June I'm fertile from the 28/July 3 four days after intercourse I had some spotting then went away shortly after the next day it was a little heavier then went away shortly after an hour is this implantation bleeding ? An now I'm having cramps an feeling as if I'm going to start my cycle witch is due tomorrow I'm also experiencing watery mouth .