Subutex

I was concerned when getting pregnant, it was not planned. But pain dr assured me that I should def not stop taking it, Bc it would hurt baby worse. I was on 8mg a day. I self weened myself over last few months. I only take 4mg at nite. My back pain is horrible & don't think I could go any lower. I plan to breastfeed also. My OB just now (at 31 wks) had me sign papers & told me all the risks. They said breastfeeding could help insure my baby doesn't withdraw. But that she has to stay in hospital for monitoring for 4 days, even if she has no issues.  I'm so worried about her. Has anyone had a baby while on this medication? I have researched it, but i just thought everything would b fine since my does is so low. 

Please no judgmental negative comments! I have done everything I can to keep my baby healthy. I don't take any other meds, & don't even eat sugar or most processed foods so that she can be strong & healthy as possible.