lGestational Diabetes at 3rd Trimester

I have been recording my blood glucose 3x a day every alternate days. There are several post meal readings that exceeded 7.0mmol/l. Last visit to Gynae yesterday and he insisted that I see a diabetic specialist at Mount A!- I have previously stayed in hospital in early April for a day to do the 7 point glucose test and result is fine as long as I control my diet. Currently at Week 30. Anyone currently seeing a diabetic specialist? What should I expect on my first visit? I am quite concern with the cost too.