I dropped out of a history course 1 semester in. You are entitled to, I think, four years of funding from student finance so if you dropped out now you should still be able to do another 3 year degree course.
Consider it carefully before you do anything though. Have you looked ahead to see if the modules become better or more interesting and more what you thought it would be? Have you spoken to your personal tutor about this?
If you really want to drop out and think you'll be really unhappy continuing, my advice would be to do it. The UCAS deadline is in 2 days from now though so you have to be quick if you want to reapply for September.