Fertility Hormones and Adrenal Fatigue It has been well documented that there is a necessity in maintaining sufficient hormonal balances to be both healthy and fertile. When certain hormone levels are not correct, it affects fertility because different hormones interact together during separate phases of the reproductive cycle to ensure that conception can take place. Now, because there are so many things that affect the output of fertility hormones, it is often difficult to pinpoint the cause of an imbalance. These imbalances can originate from simple things like poor diet, stress, vitamin deficiencies, and even body fat content. The first and most basic step to understanding how all of these aspects correlate is to look more closely at which main hormones are involved in fertility and how they are most commonly affected.