Whole wheat is soooooooooooooooo much better for you than regular pasta, bread, oats...anything.
Whole wheat is less processed and therefore keeps a lot of the healthy benefits. You'll feel it right away...less whole wheat goods will fill you up faster than the same amount of non-whole wheat. The calories may be slightly more...but you'll eat less and the nutrients are much better. It helps clean you out, too! You might find it even tastes better.
Find whole wheat bread that you like..try different ones. One sandwich with whole wheat bread will fill you up and keep you feeling satisfied for longer.