I would to. If that is what you are scoring and you plan on attending Fall 2005 you need to:
a) postpone until December
b) Scrap that Kaplan crap, im sorry, it sucks.
c) Purchase a minimum of 20 practice tests
That is a minimum: Highly recommended:
a) powerscore testmasters course
b) Logic reasoning bible, logic games bible, & master the lsat
You need to start from scratch, learn how to do the questions untimed, practice a set methodology for reasoning, and apply it consistently over the next two months. If your grades for one semster drop from a 3.7 (for example) to a 3.3, so be it. It will make a .05 dent into your overall GPA, but without a 155 LSAT chances are you wont get into any decent school at all. 160-165 highly recommended.
Addendum: I know this sounds harsh, but I assume that Law is a person's first choice when they come here. This might not be the right advice for you if Law is a 2nd or 3rd option.