Right, I'm back.
I was diagnosed earlier than you, as I was tested early due to PCOS and other risk factors. My GTT was borderline.
I followed a very strict diet but was unable to control my blood sugar through diet alone so after a few weeks went onto insulin. Frankly, the diabetes nurse was OBSESSED with insulin and I think I should have tried diet for a while longer. The diabetes nurse was pretty useless so mumsnet and the internet became my chief source of information.
I soon found that my diabetes was worse in the morning so I had to be very careful with my breakfast. Porridge, cereal etc were no good as they raised my bloods too much so I ate a lot of bacon and egg, which were perfect. As the day progressed I could be less strict.
I started exercising to help control my blood sugar and did Davina's pre-natal DVD nearly every day, and went for lots of walks with my toddler. Exercise is a great way to help lower blood sugar.
I was very strict with my diet although with insulin the nurse told me I didn't need to be; another example of the poor advice she gave me.
Anyway, as a result of the diet control and the exercise I lost a lot of weight. I was a size 20 and now a year later I am a size 12 as I have continued with the exercise and diet. 2 weeks post-natal I was back in jeans I last wore in 2006, 3 years and 2 babies ago! It is the best thing that could have happened to me.
DS2 was born on the 50th centile so wasn't too big, so it proves that good GD control can work. I had to fight the hospital to keep DS2 out of special care as they had a policy of automatically putting all babies born to diabetic mothers in special care. This was probably the most stressful part and I had to get a letter from the Head of Midwifery put in my notes supporting my wishes. The hospital's policy is contrary to NICE guidelines, and has since changed.
My DS's blood sugars were monitored for 24 hours after birth as there is a risk of low blood sugar, but he was fine. Breastfeeding helps address that, so do it if you can.
Hope that helps! I was so upset when I was diagnosed (perhaps irrationally) but it turned out to be life-changing due to the weight loss and lifestyle changes I have made.
If I have another baby I would probably look to challenge the way in which they insisted on monitoring me throughout labour which meant I ended up being pretty immobile. I was also induced at 38 weeks which in my hospital is standard. I'm not sure how I feel about that now.
Good luck with your pregnancy!