Pregnancy Nausea and Carbohydrates
The additional fiber will help you feel full and will slow the transit time in your gut. This also may help alleviate your pregnancy nausea and that sour stomach feeling for a little longer than refined carbohydrates would. Try to avoid simple carbohydrates, such as pastries and sugar-laden foods that may satisfy you at the moment but may leave your stomach feeling empty a short time later.
If you have diabetes (type 1, type 2 or gestational), you need to account for the additional carbohydrates you consume and adjust your insulin accordingly. If you don't have diabetes and you've increased your carbohydrate intake because of pregnancy nausea, take comfort in the fact that, for most women, this resolves after the first trimester.