YES !!! I fully agree with both comments from 2bshredded and mrphat ass.
eight weeks is long enough and you need to be thinking about pct at this time. If you dont have it in place you are in trouble. IMO do not go longer than 12 weeks. Then do 2 or three weeks of pct. wait another six months before you do another cycle. Only next time have all your knowledge and pct in place. I personally would suggest adding Tren ace to your next cycle. Tren and deca are both from the same group but tren will not cause as much bloat as long as your diet is right both will do you well. Stay away from sodium too.
we need to know what test you are running to help with your pct. I have never run hgh myself so I cannot help you there. good luck