I was addicted to vicodin before I fell pregnant as well. I found out when I was about 4 weeks, and 2 weeks prior to that I had taken 5 or 6 of the pills per day for about a month straight, that was at my worst and after this is when I hit rock bottom and quit. I told my doctor about it and he said that the baby should be fine, but to not continue to do this. But he hasnt offered to run any tests for it, so I dont think he is worried. The only thing that has had an effect is my stomach is basicly no good anymore, it tore it right up. Either way, good luck to you. Im glad I got off of that, its not fun. Pm me if you need to talk.