I've never had gestational diabetes, nor has anyone close to me - are you certain that is advised in GD?
Anyway
@VickyP - firstly, congratulations!
The idea of testing before and after any meal, is to find out whether your body can tolerate that amount of that particular carbohydrate easily enough, at that time of day. If not, at that time of day you need to adjust the meal so your body can tolerate it. Just cos it can't do it first thing in a morning does not necessarily mean it wouldn't at another mealtime later in the same day. This applies to diabetes of all types at any time not only when they are pregnant. Added to which - every person with diabetes of any type has different tolerances for different foods - think of it like the different (natural) colour of hair and whether it's straight, curly, thick, thin, whatever.
If it's a recipe on the Diabetes UK website, it will have the carbohydrate content alongside all the recipes (along with calories, fat content etc) so you'll know you can't tolerate that much of it at that mealtime, hence look for something different to eat at that time of day.
Protein has no carb, neither does fat, but the body can still make the glucose it needs from both of those, but just takes it longer is all.
This forum, though provided and funded by Diabetes UK, is pretty independent!