just to clarify, my comment was about not buying into the hype of tren, and steroids in general, lowering your sperm count so much that you can't/won't get your woman pregnant while on them. tren increases my sex drive tenfold it seems like and I've never used caber or prami because I've never needed them, though I always have them on hand. but I've never ran it longer than 10 weeks either.
I've knocked my wife up twice, coincidentally both times while on cycle. I think 100% shutdown of the htpa takes a loooong time and anyone who is running sane cycles with plenty of time/recovery between cycles shouldn't concern themselves too much with infertility.