I'm a 22 year old guy I have been working out regularly in the gym since the last 4 years I have built my height from 4foot 5 inch to 5 foot 10 inch , also my weight has grown from 45 kg to 75 kg totally on natural non-vegetarian diet I take all the precautions while lifting weights , proper posture, using a  supporter etc. I also masturbate once in two days , I consume porn while masturbating. I don't smoke cigartte neither do I drink alcohol, I occasionally smoke hukka usually once in 6 months, I'm pretty healthy I don't get sick easily, even though after all of this my penis still measures barely 4 inches when erected and in the flaccid state it shrinks to thrice it's original size, also lately my semen discharge has become more and more transparent. Am I becoming less fertile ? Please do keep this in consideration that I have been circumsised at birth. What medicine should I take or what should I do to increase the grith and the size of my penis ?