Craving carbs - a problem??

im 29+1 first pregnancy.. So I'm craving carbs and feel so guilty after eating carbs that il cause gestational diabetes and it will go unnoticed and cause harm to my baby as I wont get screened for it as I have no risk factors and started at a normal BMI..

I'm even worrying about having a big bowl of bran flakes which I love !

and fancy some cookies...

Would you be strict with carbs?

How many do you eat a day in grams?