Thyroid problem should i be worried?

I just got a call from my ob,saying i have a abnormal result of my Thyroid test. First they tested me in aug and didnt get results till 19 sept and then sent me again to do antoehr test and they want me to call my family doctor, why can’t they tell me whats going on? I am 35 weeks pregenet already scared cause of my prev pregency going into labour at 31 weeks hemorging and now this..
thanks, love the answer"time to worry"