Pregnant, hormonal changes or just the flu?

I think I might be pregnant. I am not sure, but I am 7 days late. My last period started on September 19th. I have been feeling extremely nauseated and have had major aversions to the certain foods and smells. I am also very emotional right now. I will cry at the drop of a hat and start yelling at anyone who looks at me funny...

I have taken two tests, one didn't work properly and the 2nd came out with the negative line clear and pink, but where the positive line would have been was white. I researched that, and it is called an evaporation line. I'm going to wait a few more days and try and third test and see if my period may miraculously appear as well.

Other details, I was on the pill from January 2006 until this August 2011. I cam off the pill to get an IUD and changed my mind and my husband decided to go the route of family planning. My period in September was also slightly late and short lived, but it did come.

I'm not sure if this could just be me adjusting back to my body making it's own hormones after 5 and a half years of being on the pill or maybe I have some sort of flu. Any thoughts???