I am almost 19 years old and about 145 lbs and around 6 foot tall. I do not at all look my age, in fact i look very very young for my age. I was always smaller than everyone my age and always looked much younger. I am a late bloomer (I was around 5 foot 2 til the summer before my junior year, age 16) I have since grown pretty tall but puberty still seems like it hasnt really started. I have very little hair everywhere, my voice isnt very deep, and my penis and testicles are abnormally small I think. I do not have to shave my face. I have also been able to ejaculate since i was about 14 or 15. I am very skinny and have a pretty small package. Some help or advice would be nice that isnt im too young and need to wait. I mean i have sex pretty well but just kinda small. I am very very self conscious about it around people because its only like 4-5 inches when erect. Really looking for anwers.
You are post-pubescent.
Not everyone develops at the same rate. You're still developing and it can, and often does, continue in males until their early 20's. It's likely you'll still get "hairier."
You say 4-5" when erect. 5 - 5 1/2 is AVERAGE. Again, they can continue until your early 20's.
You could always get your hormone levels tested if you suspect a problem. Based on your statements, I don't see any.
Hope it helps.
In some cases you may be prescribed hormones.
Check with your doctor.