im 13 and my penis is 2.5 inches erect. I have pubic hair above my penis and have hair on my scrotum. I have no armpit hair or facial hair. My voice cracks at awkward times. I am increasing in height very slowly. My penis looks bigger than when I was 11. Will my penis grow?
Average for a 13-14 year old is 3-4" so you are very close.
Armpit hair often comes in as late as 16 or so. Facial hair too.
We all develop at different rates/times.
Your penis can grow into your early 20's.
Hope it helps.