I'm worried

Glo said I was supposed to see AF on the 9th but I never an before that I tested to see if I was ovulating on 11-07-2014 an it was a smiley face. I have had intercourse since then back to back an I tested to see if I was pregnant an it said No.... Then I asked a few days ago about it on here an someone said I should test around the 21st  idk what to do. Glo told me yoday that I should see AF an it showed I'm only going see her for 3 days! My periods are an have always been for 5 days. Can someone help me out!?