hey im 15.5 y/o and and about 5'3" 120lbs...my doc says i should end up being around 5'8" tall. my penis size is almost 4" soft and about 5.5" hard. i have NO facial hair and am just starting to get some pit hair. (i guess you can say im a late-bloomer) is my penis done growing? or will it continue to grow until im fully done puberty? how much bigger will it get?