I attribute my fertility to several factors:
1.) Compound Selection: I have NEVER used(and would never use) Trenbolone(Tren) or Nandrolone, as my biggest priority has always been my sexual health--even moerso than my overall health at times. These two 19-Nortestosterone derivatives will wreak HAVOC upon your endocrine system, and I strongly feel that MOST of all infertility cases are caused by the use of either Deca, Tren, or both. In addition, I avoid HIGH dosages of testosterone as well, never exceeding 750mg at any time, with my average dosage ranging from 250-500mg, depending on ester and goals.
2.) The Periodic Use of Aromatase Inhibitors: I have always regulated my estrogen levels while on and off cycle, which I also feel has greatly contributed to my endocrine health. Estrogen is extremely detrimental to male sexual health, especially if levels become supraphysiological for extended periods of time. I have never felt that AI's inhibit my gains in any way, and sometimes I actually feel they enhance my gains. For maximum fertility and estrogen modulation, I would advise the use of Letrozole, but very conservatively.
3.) Do NOT Over-Use HCG: In all of my years cycling, I have only used HCG several times, the last of which was many years ago. I do not feel that HCG should be used abundantly, as it is only a temporary solution to a more fundamental problem. Not only can you desensitize your testicles to their own LH, you also accelerate testicular aging. Recent studies have actually suggested that staying on cycle for LONGER periods of time may actually preserve testicular age and function, so going ON AND OFF AND ON AND OFF cycle is actually more deterimental HPTA function in the long run.
Typically, a "cruise" period lasts anywhere from 4-12 weeks, depending on my goals.