Pregnant?

Okay so for the past couple weeks I've been feeling nauseous, especially when I first wake up or eat. Certain smells make me feel sick as well. My next period isn't due until January 9. My period for this month was very much lighter than normal. And only lasted four days. I have had sex, and we used the pull out method. My stomach has been bloated and tight here lately and my breasts have been slightly tender and itchy. If I am pregnant, it will not be a problem. I'm just not sure if maybe it's symptoms of something other than pregnancy? Any advice is greatly appreciated! And yes I know the only way to know for sure is to test, I just want others opinions who've been through it before I go buy a test!