Staying hydrated in pregnancy

Drinking enough water is one of the simplest and most underrated things you can do for yourself in pregnancy. Your body is working overtime — making extra blood, producing amniotic fluid, and supporting your growing baby — and all of that needs water. Staying well hydrated genuinely helps with a whole cluster of common pregnancy niggles.

Good hydration helps prevent and ease constipation (water helps the fibre in your diet do its job), reduces your risk of urinary tract infections, helps with tiredness and headaches (dehydration is a sneaky cause of both), and supports healthy circulation. And here’s a myth worth busting: drinking plenty of water does not make swelling worse — if anything, staying hydrated helps your body manage fluid better, so don’t cut back on fluids to try to reduce swelling.

How much? A common guide is around 8 to 10 glasses (roughly 2 to 2.5 litres) a day, but you’ll need more in hot weather, when you’re exercising, or if you’re vomiting with morning sickness. Rather than counting glasses obsessively, a simple check is the colour of your urine: pale straw-coloured means you’re well hydrated, while dark yellow is a sign to drink more.

Water is best, but it all counts toward your fluids — milk, and the water in fruit and vegetables (things like watermelon, oranges, cucumber and soups) all contribute. If plain water is boring, try adding a slice of lemon, lime, cucumber or a few berries, or having sparkling water. Keep an eye on sugary drinks (soft drinks, juices and cordials), which are best limited, and remember caffeine counts toward your daily limit and has a mild diuretic effect. Energy drinks aren’t recommended in pregnancy at all.

A few practical habits make it easy: keep a refillable water bottle with you and sip through the day, have a glass with each meal and snack, and drink to thirst. If you’re finding yourself up all night to wee, you can ease off large drinks in the hour or two before bed while keeping your fluids up during the day — that’s a fair trade-off, not a reason to skimp overall.

Watch for dehydration, which is more likely if you have morning sickness, a tummy bug, or it’s very hot. Signs include dark urine, a dry mouth, headaches, dizziness, and feeling more tired than usual. Contact your GP or midwife if you can’t keep fluids down, or if you have signs of a UTI (burning when you wee, needing to go constantly) or of dehydration that isn’t improving — and in hot weather, be extra mindful, as pregnancy makes you more prone to overheating.

You don’t need to overthink it or force down litres — overhydration is rarely a problem, and drinking to thirst with an eye on your urine colour works well for most people. Keep a bottle handy, favour water, ease off just before bed if the night trips are getting to you, and let this quiet, easy habit take the edge off a surprising number of pregnancy complaints.