Hydration while pregnant: Building a Routine Around Your Day

Regular drinks help support the increased demands of pregnancy. A useful hydration routine fits around your day and changes when you are hot, active or unwell. It should also help you notice when drinking has become difficult enough to need medical support.

Use guidance as a starting point

US obstetric guidance suggests eight to twelve cups of water daily during pregnancy, with a cup meaning eight US fluid ounces. UK advice gives a general fluid guide and notes that pregnancy, hot weather and activity can increase needs. These descriptions should not be added together as separate targets.

Ask your maternity team what makes sense for you if a medical condition affects your fluid needs. Drinking more and more is not a substitute for following an individual plan. It can help to check the capacity of your usual bottle so a refill has a clear meaning.

Make drinks easy to reach

Keep water nearby and connect drinking with ordinary moments, such as breakfast, a work break or returning from a walk. Carry a bottle when travelling and plan a chance to refill it. Small, regular drinks may be easier to manage than catching up with a large amount at the end of the day.

If plain water is unappealing, try it chilled, sparkling or with a slice of lemon. Milk and other suitable drinks also contribute fluid. Tea and coffee count towards fluid intake, but their caffeine still counts towards the pregnancy limit. The caffeine guide explains how to count the full day.

Adjust when nausea or heat changes things

If nausea makes drinking difficult, try small sips and build up as tolerated. When vomiting or diarrhoea causes fluid loss, ask a pharmacist or clinician whether an oral rehydration solution is appropriate. Follow its mixing instructions rather than making a stronger mixture.

Do not keep trying new drinks while worsening symptoms go unassessed. The dehydration and morning sickness guide explains when nausea needs more than a change in routine.

Recognize signs that need help

Thirst, a dry mouth, darker urine and passing urine less often can suggest you are not getting enough fluid. Pale yellow urine can be a useful everyday guide, but it does not replace attention to how you feel.

Get urgent medical advice if you cannot keep fluids down, are passing very little urine or remain dizzy when standing. Do not wait to finish a daily drinking target before calling. Confusion, difficulty breathing or being difficult to wake requires emergency help. Persistent vomiting may need treatment so that you can drink and eat again.