I HAD THE SAME PROBLEM!!!
ok, my 1st cycle of test prop 550wk i quickly found my sex drive plummit and saw no real gains BUT i kept it going and round week 11 all of a sudden(BAM) 30 lbs in 3 weeks!!! i ran till week 15 which was longer than i expeced but i figured id feel it out and wait until my gains subsided before letting off.. so from that id say give it time also you might wanna try 1 intermuscular shot of 5000iu's of hcg i did that round that time (not sure if it helped but ive read it can) Also if your like me watch out for gyno ive ran 2 cycles and seem to be prone to it next time im gonna run nolva 20mg ed from day one... but in any case good luck and keep in going i was pissed and thought my stuff was fake (even though my buddys grew during wk 4 from the same stuff).. but i was sure glad i didnt quit like i wanted too 20x times during the cycle