There really haven't been any smokers in my family whatsoever. I never smoked when I was pregnant, didn't drink, followed the Bradley diet to the T, avoided all the foods and everything on the "bad" lists. I was super, super, careful when I was pregnant, and my son still has pdd-nos.
The only things I can say is that I was under a LOT of stress and anxiety when I was pregnant because my husband and I were NOT getting along at ALL! He kept doing all these really wierd, and at that time incomprehensible things, I thought I was going crazy because I could not believe it. I thought for sure that we would be divorced, that I would be raising our baby alone, we were fighting all the time.
If anything could be related to what I did or didn't do, it's that I let myself get worked up into a frenzy a lot of times with him. I remember people saying it's not good for the baby to be so upset and sad, and I remember thinking, "what could possibly happen?"