Am i pregnant?

I had unprotected sex 10/1/16, and my period was supposed to come 10/6/16. It is now 10/10/16. I still have not had my period. My boobs & nipples are really sore! I have also been cramping! I took a cheap pregnancy test for 88¢ . 
 ere is a pic of my test with a VERY VERY VERY FAINT line, am i pregnant???