Water Intake During Pregnancy
Review general pregnancy hydration guidance and why advice from your prenatal care team takes priority.
General water guidance
The American College of Obstetricians and Gynecologists (ACOG) advises 8–12 cups (64–96 US fluid ounces) of water daily during pregnancy. This is general guidance, not a personalized prescription, and may not fit every medical situation. Read ACOG’s pregnancy water guidance.
Spread drinks through the day
If nausea makes drinking difficult, smaller, more frequent sips may feel easier. ACOG discusses hydration and nausea in its pregnancy resources. If you cannot keep fluids down, urination drops markedly, or you feel faint or very unwell, contact your prenatal team promptly.
Different references describe different totals
The National Academies lists an Adequate Intake of 3.0 L/day total water during pregnancy for adult age groups, including water from beverages and food. ACOG’s cup guidance is specifically water to drink. These are different reference approaches; do not combine them into a new target or assume either is a personal requirement. National Academies life-stage tables.
Common questions
Is 8–12 cups required for every pregnant person?
No. It is general guidance; your prenatal clinician’s advice takes priority.
Does an adult water calculator account for pregnancy?
No. The site’s adult heuristic is not a pregnancy target.
What if I cannot keep drinks down?
Contact your prenatal care team promptly for individualized advice.
Sources and further reading
- ACOG: How Much Water Should I Drink During Pregnancy?
- National Academies: Total Water AI by Life Stage
Sources support the specific guidance described above. This page is general information, not diagnosis or individualized medical advice.