Hi. Welcome to TeenHelp.
First of all, if you do have pubic hair, then you're in puberty, as Acheron said.
While the average age for entering puberty is 13, it's normal for guys to begin puberty anywhere between 10 and 15. So you don't really have anything to worry about. Your voice will deepen and testicles will enlarge in time. And to be honest, unless you regularly examine your testicles, you probably won't ever know if they're getting bigger or not--it's perfectly possible that they already are and it's just not obvious to you. If you are really concerned about any of this, it wouldn't hurt to ask your doctor about it at some point in time. I know you said you didn't want to, and that's understandable, but know that if you have questions or concerns, your doctor could be a perfectly good resource.
If you have any questions, feel free to let me know--I'm absolutely happy to talk about puberty if you need to
Take care, man
