Hello, and I hope I can help you today. Unfortunately, being pregnant does not prevent you from getting sick just like any other person. Fortunately, you have to have very severe and/or certain types of illnesses to put the baby at risk. A low-grade fever and some nausea likely is just a stomach flu or some type of food-borne illness and does not pose a threat to the pregnancy. I suggest you start a bland diet with simple, starchy foods and sweet liquids. Products made from ginger (tea, candies) are soothing to the stomach and can help with nausea, and Acetaminophen (Tylenol) is safe to take at the normal adult dose during pregnancy for pain or fever. Also if you are sick, there is no problem with getting the routine prenatal blood tests as the results are not affected by your illness. I hope I was able to answer your question today and that my advice was helpful. Best wishes for the rest of the pregnancy, and I hope you feel better, Dr. Brown