I have thyroid problems and am on 150mcg thyroxine/day how is this likely to affect my baby and the fact that I am no 13 days overdue and duer to be induced on Wednesday. I know thyroid problems can be congenital and have just read a post that has me worried that this is a)why I have gone over so far with no real signs of baby wanting to arrive, b)why this one feels quite a bit bigger than first child whose guthrie test and subsequent tests came back with anomalies till she was aged 2.