Stomach upset is a normal symptom of pregnancy, states WebMD, and is very common among pregnant women due to hormonal changes in the body. Nausea and vomiting normally occur within the first three months of pregnancy but usually disappears by the fourth month. Women are more likely to experience stomach upset in the morning hours when the stomach is empty.
The main culprit for feeling queasy is an elevated level of the hormone progesterone, states What to Expect. In addition, some women have a heightened sense of smell. Being extra sensitive to certain odors can trigger an episode of nausea or vomiting.
Eating dry foods, such as crackers, cereal or toast, while still in bed is a reliable method to stop morning sickness, according to WebMD. For women who experience extreme nausea, there is the BRAT diet, a strict diet where only bananas, rice and tea are consumed. Ginger is another old-fashioned remedy for nausea, including ginger ale. Other recommended drinks are apple and grape juice. Sipping smaller amounts of fluids throughout the day is preferable to drinking large quantities. In addition, greasy, spicy foods should be avoided during this phase.
Severe vomiting that makes it impossible to keep food or liquids in the stomach can lead to dehydration, cautions WebMD. This requires immediate medical treatment.