Stress and infertility

I am a type A personality which may have had something to do with me developing endo. Let me tell you a little more, according to wiki:
Type A individuals can be described as impatient, time-conscious, controlling, concerned about their status, highly competitive, ambitious, business-like, aggressive, having difficulty relaxing; and are sometimes disliked by individuals with Type B personalities for the way that they're always rushing. They are often high-achieving workaholics who multi-task, drive themselves with deadlines, and are unhappy about delays. Because of these characteristics, Type A individuals are often described as "stress junkies."
Type B individuals, in contrast, are described as patient, relaxed, and easy-going, generally lacking an overriding sense of urgency. Because of these characteristics, Type B individuals are often described by Type As as apathetic and disengaged. There is also a Type AB mixed profile for people who cannot be clearly categorized.

There is a high correlation between endometriosis and stress according to my fertility specialist. Visit my fertility clinic's website: www.medfem.co.za. Apparently stress has an impact on the immune system and, in my case, my compromised immune system is impacting on the quality of my mucus and, in turn, killing off my husband's soldiers. What i still dont understand is if stress is sudden taken out of the equation whether fertility (and thereby mucus) will improve over time, or whether the damage is done. Does anyone have any answers?