If you're not "overweight" than I suspect that your goal may be something quite different from what you are actually asking.
Instead of focusing on "losing weight", I would suggest focusing on getting more "toned" for your wedding. You will lose a little extra body fat in the process (probably 5-6 lbs, depending on your current body fat levels, height and weight) and will look fantastic and healthy on your wedding day.
Plus, focusing on building some lean muscle versus just losing scale weight, has tons of other health benefits. You'll look better, feel stronger, be less susceptible to bone loss later in life, and have nice lean muscle, with some curves and definition, and less "jiggle."
My recommendation would be to start an exercise routine that has some cardio, but mostly focuses on weight training. You have about four months to do this, which should be just about perfect to put you in tip-top shape for your wedding. Doing this 2-3 times a week should be plenty.
Continue to eat healthy -- lots of lean protein, complex carbs (like oatmeal and fresh veggies) and some sources of healthy fats like fish oil, olive oil, fish, walnut oils, etc. This is also known as a clean eating diet -- but it's really not a diet, per se. Just an approach to healthy eating that encourages fat loss and lean muscle.
For some tips on how to get started, you can check out the following articles. One article contains instructions for a full-body workout routine that people have found to be extremely effective. I've had a lot of women who were already pretty lean try this workout with great results.
Read the articles in this order, so you'll have a good understanding of why I'm recommending you do some weight and resistance training, versus just focusing on losing scale weight:
- Am I Fat? Why Body Fat Percentage is More Important Than Weight
- Why Toning Routines Fail: How To Look "Toned"
- Full Body Workout Routine
Best of luck!
