For the last couple weeks I've been having slight cramps, headaches, getting dizzy spells, and feeling more tired then normal. My period isn't due for another week.

How can anyone on a website tell you if you are pregnant?
We are not doctors or seers.
You get a pregnancy test and find out.
If you are willing to be sexually active you must take responsibility for the consequences.
Clearly,you are not ready to be a parent,get protection and or get educated about being a parent.

Have you had sex? Then technically, yes, you could be pregnant.