When I was in Year 7 (11 years old) I was about to be circumsized, and I overheard my doctor telling my mother that my penis was very big; of course I was young and didn't know, but I did have erections so I measured it (it was 14cm) and I found out the average was 14-16cm for adult males. Growing up I started to realise what this meant and became happy, however now I am 19 and my erect penis is only 14.5 cm (not the type of growth I was imagining). so is that it or is it possible for future growth?