A lot of men don't really have much have
on their testicles. Others do. No big
deal. People are different. You don't
sound abnormal so far. Maybe you'll get
more hair, maybe not.
You'll probably start ejaculating soon.
It is not uncommon to not ejaculate at
your age.
How do you know you do not have
pre-ejaculate if you do not know what it
is?

Pre-ejaculate is
a drop of semen that comes out before the
man ejaculates. Sometimes it's such a
little bit that the man does not notice
it.
Don't worry, you sound perfectly normal so
far. You'll probably start ejaculating
and having pre-ejaculate before too long.