I have a great news for you. The American Bar Association (ABA) has publicly stated that no particular undergraduate degree is required or even recommended. In the ABA's own words: "There is no single path that will prepare you for a legal education" and "The ABA does not recommend any undergraduate majors or group of courses to prepare for a legal education. Students are admitted to law school from almost every academic discipline."
A great place to get started on your law school journey would be the Law School Admission Council's website. The "Thinking About Law School" section is absolutely worth checking out: http://www.lsac.org/jd/thinking-about-law-school/getting-started
I hope this helps, but please continue to post questions to the forum.