Jil,
Congrats on your first week sober. Do check out that link that Stevie posted--it's a terrific article, and pretty accurate, in my estimation. It responds with a lot of info that helps to dispel some of the fears and misconceptions people might have about AA.
Not only that, there is NO obligation to continue with it (though I have a feeling once you've tried even a handful of meetings you will absolutely love it).