Hello thanks for your query. You should be eating healthy nutritious food. Do not eat all at once at a time, but take small frequent meals. Concentrate of high protein foods like lean cuts of meat, chicken, poultry, fish , nuts, legumes. Also, consume a lot of dairy products. You cannot take appetizers in pregnancy - you have to condition yourself to eat sensibly and proper amounts. COnsult a dietician if required. your obstetrician can prescribe vitamins , supplements, protein powders etc, to add to your diet. Please be reassured, and post the ultrasound findings to check if the baby s growth is indeed being compromised. Sometimes, petite or small built women do have constitutionally small babies, in which case there is nothing to worry about. take care.