A week is a long time, but certainly not unheard of. The turnaround can depend on a lot of factors including the length of the story, the number of other submissions at the time, whether a contest is happening (there is one on now), and whatever else may be going on in Laurel's life. Also, if you open up the submission to make any changes after you submit it, supposedly it goes back to the end of the line.
Sometimes stories DO fall through the cracks though. Laurel is only human. If you feel that it has been an excessively long wait time, you should PM Laurel and ask her to verify that your submission is still in the pipeline.