Taking LSAT in December vs. October

Hi guys,

I recently just finished my undergrad dual major degree at the end of July. I was the Director of Student Legal Services at our university and am now planning to attend law school. However, with work and summer classes I was not able to dedicate as much time to studying for the LSAT as I should have and now I am weary about taking the test in October. Are there any HUGE reasons why I should NOT take the test in December?

Thanks guys