A.C.
Sure, you could be. Have you taken a home pregnancy test? Are your periods regular? You won't necessarily have definable symptoms this early, though some women will have them pretty early on.
It is pretty easy to get a reasonably reliable answer.
BTW, I did a lot of research on home pregnancy tests, just buy Wal-Mart's Equate brand. You can get a two pack (in case you need to retest in a few days) for the price of many singles and they are as accurate as name brands--we're talking deviations of .01%
I hope you get the answer you want.