"Arimidex .25mg E3d—after 15 days I got tested and my estrogen was high so I changed it to .5mg E3d got testes 15 days later and it was good to go.
Clomid 30mg ED
Nova 20mg ED
HCG 250iu a week
Vitemin E--400 mg of vitamin E /225 mcg of selenium ED I was over the 400mg of E because of diet.
GnRH- The recommended dose.
By day 45 my sperm count was the highest it’s been and my motility, some of my guys were still on the short bus but the doctor saw a 43% increase from where I was before."
This was from a forum that shall not be named here. But I have read of people running high dose gear and still having the ability to have a kid. If you really want to be sure you can have some sperm stored at the sperm bank. Also you can run hcg for the duration of your gear usage and get your swimmers tested regularly.
There are a few orals which I have seen can lead to sterility but other than that not 100% positive.