Bebe,

Here is a link to a page about chemical exposure to toxic substances and endocrine disruptors in Pregnancy.  Although it talks about disruptors, it in effect is causing an hormone imbalance which they feel may affect unborn children.  It may give you an idea what to do searches for to answer some of your questions.

http://www.epa.gov/children/toxics.htm

 

Cheers,

Anne-Marie