Level 1: Benefits of drinking apple cider vinegar for pregnant women. There are many benefits of drinking apple cider vinegar for pregnant women. First, apple cider vinegar can help relieve symptoms of nausea and vomiting during pregnancy. Secondly, apple cider vinegar can also improve the body’s immunity and prevent infections and diseases. In addition, apple cider vinegar can help blood sugar levels and prevent the occurrence of gestational diabetes. If you are pregnant and