I have to admit I use ayurvedic tea and whatnot, but I started that when I was just diagnosed and ended up liking the taste. Didn't do much of anything for anything, really... The only thing that really helped was going low carb, so if it's meds you want to avoid due to breastfeeding, that is an option. Just read up on it before you dive in, as while breastfeeding there's some caveats for your and your baby's health: https://www.dietdoctor.com/low-carb/when-breastfeeding
You want to know what your bloods are doing before a meal and 2 hours after the first bite. Just the numbers by themselves don't mean very much in relation to the food you're eating. If you go up more than 2.0 mmol/l, the meal was carbier than your body could process, but you also have to spread out about 50 grams of carbs throughout your day to safely breastfeed and, that may be tricky...
I've converted numbers wrong before, so it could be just barely early stages of diabetes, or not. The difference between your pre- and post-meal reading is a little higher than one'd like it, but only a little, and considering that rice (regardless of colour, sorry) may have been involved in that meal, that's still pretty good. So your plan sounds solid: finish your 6 months of breastfeeding and get checked again, go from there.
