Subutex and Pregnancy

I'm currently 9 weeks pregnant. I've been on suboxone for a couple years. I've cut down to probably 1mg a day over the past weeks. But I recieved a call from the OB office to tell me I failed my drug test for sub. My dilemma is that I dont have my own script, I told the nurse that I'm planning to wean myself off and she said talk to the provider and just ask them to retest me when I am completely off. But I am just scared and confused, I dont know if I should call and make an appointment with a clinic to show the ob that I do have a script or just try to wean all the way off. Anyone who as delt with addiction knows that this is not an easy task but I just want what is best for my baby. Please no judgment just advice if anyone would be so beautiful and brave to talk to me.