I have had my gtt today (currently 27 weeks) and they have just called to say the results were high (did not give a figure) and said they would be posting me some information and that I have to go in for weekly blood tests. Is diet likely to have caused this? I had a bmi of 32 at booking in but have yet to gain any weight (had a vomiting bug in early pregnancy and lots quite a bit of weight) any tips while I am waiting for the information? Many thanks