Thyroid Levels in Pregnancy

I got a call from an assistant at my OBS office today stating that my thyroid levels are abnormal and they want me to do more testing. I'm 9+3 and the whole prenatal panel testing but didn't get any other information. When I asked for more information he responded with the doctor didn't call you? I'm just nervous and called back to get clarification but have to wait for their call. Did anyone else have abnormal thyroid results? As far as I know i have never had a problem with my thyroid before.