Stress is one of those major health obstacles.  Choose a de-stressing activity that appeals to you.  Mine is fishing and taking time off from the computer.  Your bedroom must be a tool for rejuvenation.  Store your cell phone, watch, computer and any other electrical or electronic appliance in another room.  Do not use an alarm clock.  Raise a couple of chickens instead, remember to get a rooster.

Do you get it yet?  It is back to nature for you.  Fertility is a result of true health.  There are no shortcuts.