This might help some:
http://www.steroidology.com/forum/s...89&page=1&pp=25

I have heard of this happening, I have also heard some who were on large amounts of gear and remained fertile, while some others have become permanently infertile due to their steroid abuse. Just what I've heard though...

I've never heard of anyone becoming permanently infertile. There's been some cases where it takes months of PCT type therapy to bring everything back to normal levels but permanent? not that I'm aware of.

I had a good friend that was "on" for over two years, about 3/4 of it on Tren which we all know is VERY suppressive. He had an epiphany and stopped everything cold turkey, not even a day on PCT (stupid obviously). It took him 6 months to recover to the point that he could get his fiance pregnant so imagine how much easier it would've been if he did a proper PCT.

sperm levels on some people can be mucked up bad same as sex drive but i believe this to be very much down to the individual. Your sperm count may be severly cut due to the gear, however you only need one little sperm to do the job and seeing as we produce millions the chances of your sperm count being hindered that much is doubtful.

The more likely outcome is if you are trying to concieve your sperm count will be zip but the night you want to be infertile your gonna be pumping out some super strenght tadpoles!

I have heard several times of guys who got there old lady pregnant while on cycle. Believing they would be infertile, they didn't use birth control. I think it greatly minimizes the likelihood of pregnancy, but I don't think it is guaranteed.