New stuff symptoms and conditions

Okay so I really need advice.
I'm taking a test tomorrow because I've been feeling HORRIBLE the past month. I'm SUPER nauseated, sort of having stomach pains, and always hungry..but it's a weird hunger.. the type where you feel kind of full but like you're really hungry all at the same time. I'm on my 2nd pack now and was on Yaz for 8 months before I started Loestrin. Is it bad that I've been sexually active w/o a condom but using the "pull out" method? I'm supposed to start tomorrow..haven't had cramps or anything so far. But I don't want to freak myself out so bad that I miss my period, so I guess that's another reason why I'm taking a test tomorrow.