Vomiting in pregnancy: treatment, hydration, and warning signs

Pregnancy-related nausea can occur at any time of day and may be worsened by smells, an empty stomach, tiredness, or certain foods. Vomiting can also result from gastroenteritis, food poisoning, migraine, or another medical problem. Severe vomiting can lead to dehydration, weight loss, electrolyte changes, and difficulty taking essential medicines, so its effect on eating, drinking, and urination matters more than the label alone.

Take frequent small sips of water or an oral rehydration drink, and try small meals with plain carbohydrates or protein when tolerated. Keep crackers or another simple snack nearby, avoid known smells and triggers, and rest. Contact your maternity team or clinician before taking anti-sickness medicine, supplements, or herbal products; they can select an option and dose appropriate for your pregnancy and health history.

Contact your maternity team promptly if you cannot keep fluids down, pass very little urine, feel faint, have a racing heartbeat, vomit blood, develop severe abdominal pain or fever, or notice marked weakness. Urgent assessment is also needed for confusion, breathing difficulty, vaginal bleeding with pain, or symptoms that are rapidly worsening.

Tell your clinician how often you vomit, what stays down, your urine pattern, weight change, pregnancy stage, and all medicines or supplements. Ask when to use anti-sickness treatment, whether fluids or blood tests are needed, and which symptoms should trigger hospital assessment.