I had un-protected sex on July 3 and on July 5 I had what I thought was the begging of my regular period because it seemed pretty normal flow but then it ended on July 6. I have been tracking my periods only for two month and I was scheduled to start on the 5th of August but it never came and now I am ten days late and this never really happens. I work a lot so I am always tired and I always eat like there is no tomorrow, as much as I want this to be true I am scared to take a test and be told that it is not. What are my odds that I am?