I am 14 and my penis won't grow
You need to see an endocrinologist. Ask your doctor to refer you to one. There may be nothing wrong - just delayed development - but a specialist will check that and treat you if there is something wrong.
yes but my penis has always been about 5inches
then you don't have a problem.
5 inches is normal erect or flacid.
it is erect
You are NORMAL.