You sound like a proactive winner. Couple things, just from reading:
1. Your fasting glucose is high and you have central obesity, a mark of metabolic syndrome, so you are already into the struggle.
2. In your age group only 12.5% of Mauritians are diabetic. The 50 % thing refers to age 45+
3. the way I look at challenges like this, which I also have, being multiethnic, is it's like genes. It ain't necessarily so, won't necessarily happen, but forewarned is to be prepared. You are a prepared winner.
4. On the weight thing, I have central obesity also, which is cardiovacular and other risks not just diabetes, but my weight is about the same but I am a couple inches taller. but that is now. A doc told me a dozen years ago when I was waaaay heavier that I had the choice of losing 50 pounds or dying. I chose life.
In my mid20s, I weighed 125 pounds but I was three inches taller than you and had had a couple children. I had already gone through gestational diabetes twice, gained over 60 pounds each pregnancy. And lost it. I was not healthy.
In your place, knowing what I know now, I would try to see a good endocrinologist and a cardiologist, have all the metabolic stuff checked out and have a stress test and then ask those docs what would be my ideal weight. Before pregnancy. If I had the bucks, would see a sports medicine doc and work out an ideal joint saving exercise program. I would have rowed crew longer. I would have swum more. No way can central obesity fight those two sports