Intervention Patients from the intervention group will receive nutritional counseling from a specialist bariatric dietitian trained in pregnancy nutrition as well. The main goals are a healthy balanced diet including adequate daily servings from all food groups (dairy and egg, meat, vegetables, fruit, whole grain starches, and healthy fats), intake of essential nutrient during pregnancy such as iron and folic acid and limitation of high-sugar and fatty foods. In addition, the patients were advised concerning eating at scheduled times (e.g., 4-6 times daily), taking supplements, preference of water. Advice concerning healthy cooking methods will also be provided. Participants will be advised to avoid soft drinks, drinking during meals, grazing and emotional eating, as well as fast foods. Also the subject of lifestyle in general will be addressed, and participants will be encouraged to incorporate suitable physical activity on most days, refraining from alcohol, and smoking. As currently, no guidelines exist in the literature for nutrition or behavioral modifications for pregnancy after LSG, counseling is based on previously published literature for bariatric and healthy pregnancy nutrition separately.