I know what you're all thinking. Ick. Or you're looking at this page, embarrassed that you're reading it. You're looking over your shoulder to make sure no one is looking at the screen to see what you are doing.
But you shouldn't be embarrassed. It's a natural thing. A way of life. But it can seem awkward at times, that's true. But remember, you're not going through it alone. All your friends are going through it too. So don't worry if your voice cracks, or you get a zit, or you are suddenly taller than your friends. They're just as embarassed about it as you are. Don't worry about it!
Puberty is different for boys and girls. Check out these links for a lot more information on puberty:
Puberty For A Girl
Puberty For A Boy
For more overall information on adolescence and growing up, visit this site, Growing Up. It is full of all kinds of information that you were too embarrassed to ask.