First things first, celebrate. Share the news with those dear to you and bask in the love that surrounds you. Breathe in the moment and rejoice because it is your time. After taking a second to let it sink in that you are marrying the guy of your dreams (YAY!!!) start thinking about what you want out of your wedding day. Big or small occasion? Day or night event? Spring, summer, fall or winter bride? Religious or modern nuptuials? Simple and stunning or grand and glamorous reception?
Because one decision depends on the next every little thing will count towards making your special day that much more special. The earlier you start skimming magazines and websites the faster you will be able to decipher what you would like to incorporate into your big day. Needless to say everything will most likely grasp your attention in the beginning and that is why it always helps to start early. You give yourself a chance to go from loving everything and not knowing how to cut down to only picking the lovely additions that your wedding day wouldn't be able to go without.
If you are the DIY type of gal start researching ways you will be able to save money without skimping on style. If you are the type of person that loses focus/control/temper/nerves :-), start researching wedding planners or event stylists to help you through the planning process. Their help could make all the difference as you put your wedding day together piece by piece. And whether you are getting professional help or not, something that I swear by for every bride is a personal planner. These can be downloaded from various event sites and they detail all you would and should cover by specific dates before you say "I Do".
No matter the path you take up until that day, try your best to enjoy it every step of the way. Most importantly plan for after the wedding day. The life you begin together will be far more significant.
Live for love. Love a lot. Laugh always.