Why drinking water during pregnancy is so important

Hydration tips, benefits and the best drinks for pregnancy and labour

Drinking out of a fancier glass makes you feel more included socially

Chin chin, bottoms up, raise a glass — you’re having a baby!
(Obviously your glass is full of water or juice… don’t worry, it won’t be forever!)

We all know drinking water is important, but staying hydrated during pregnancy becomes even more essential for both you and your growing baby.

Many women start pregnancy with the best intentions of drinking more water, only to forget throughout the day or simply find plain water a little boring. But during pregnancy, hydration plays a much bigger role than many people realise. One of the most important tips is near the end of the blog so stay with me..

From supporting amniotic fluid levels to helping reduce headaches, constipation and pregnancy swelling, drinking enough water can genuinely make a difference to how you feel during pregnancy.

Why Is Drinking Water Important During Pregnancy?

Your body needs more water during pregnancy to support both you and your baby.

Water helps:

  • Transport oxygen and nutrients around the body

  • Support the placenta and uterus

  • Maintain healthy amniotic fluid levels

  • Support kidney function

  • Help remove waste products

  • Aid digestion and circulation

Staying hydrated also supports your baby directly, as water helps carry nutrients from the food you eat and any prenatal vitamins you may be taking.

Can Dehydration Affect Pregnancy?

Yes — dehydration during pregnancy can contribute to several common pregnancy symptoms.

Signs of dehydration in pregnancy can include:

  • Headaches

  • Dizziness

  • Fatigue

  • Cramping

  • Dry mouth

  • Dark urine

Some women may also notice increased Braxton Hicks contractions when dehydrated, particularly in the third trimester.

Often, by the time we feel thirsty, we’re already mildly dehydrated, which is why drinking little and often throughout the day can really help.

Can Drinking More Water Help Pregnancy Swelling?

Surprisingly, yes.

Many women experience swollen ankles, feet and calves during pregnancy, especially during the third trimester.

Although it sounds counterintuitive, drinking enough water can actually help reduce water retention by supporting circulation and helping the body regulate fluids more effectively.

So those dreaded “cankles” may benefit from a little extra hydration!

Water and Pregnancy Constipation

Constipation is incredibly common during pregnancy thanks to hormonal changes and pressure on the digestive system.

Drinking enough water can help soften stools and support healthy digestion, making bowel movements more comfortable.

And let’s be honest — anything that helps in the constipation department during pregnancy deserves celebrating!

How Much Water Should You Drink During Pregnancy?

The NHS recommends drinking plenty of fluids throughout pregnancy, with water being the best option.

Many women aim for around:

  • 1.5 to 2 litres per day initially

  • More during later pregnancy, warmer weather or exercise

You may need additional fluids if:

  • You are very active

  • You are vomiting due to morning sickness

  • The weather is hot

  • You are exercising regularly

Drinking out of a fancy glass does actually make you feel more involved in social situations and it genuinely does make it feel less boring!

How to Drink More Water During Pregnancy

Yes, water is boring so add some stuff to it!

If plain water feels boring, you’re definitely not alone.

Simple ways to make water more appealing include:

  • Adding cucumber slices

  • Lemon or lime

  • Fresh mint

  • Strawberries

  • Ginger slices

  • Melon

Some women also find ginger-infused water soothing during morning sickness.

Best Drinks During Pregnancy

Water is still the best option, but other drinks can contribute towards your fluid intake too.

Pregnancy-friendly drink ideas:

  • Milk

  • Smoothies

  • Diluted fruit juice

  • Vegetable juices

  • Rooibos tea

  • Ginger tea

  • Peppermint tea

Smoothies can provide additional nutrients including calcium and iodine, which support your baby’s development.

Fruit juices are best diluted where possible due to their sugar content.

Herbal Teas During Pregnancy

Some herbal teas are commonly enjoyed during pregnancy, while others are best avoided.

Herbal teas commonly considered suitable during pregnancy include:

  • Ginger tea

  • Peppermint tea

  • Spearmint tea

  • Rooibos tea

Some women also choose raspberry leaf tea later in pregnancy, though it’s always best to discuss herbal products with your midwife or healthcare provider first.

Herbal teas often advised to avoid during pregnancy include:

  • Ginseng

  • Pennyroyal

  • Liquorice root

  • St John’s Wort

If unsure, always check with your healthcare professional before using herbal teas or supplements during pregnancy.

Pregnancy Hydration Tips

Here are a few realistic ways to stay hydrated during pregnancy:

  • Carry a BPA free water bottle with you

  • Drink little and often

  • Add fruit or herbs for flavour

  • Use a straw if it helps you drink more

  • Keep water by your bed overnight

  • Choose a bottle you genuinely enjoy using

Honestly, sometimes a lovely water bottle makes all the difference!

Staying hydrated during labour itself is SOOOOO important

Water bottle with a straw

This is the most important bit - During labour your uterus is doing an incredible amount of work. It’s a powerful muscle working in coordination with your baby to help your cervix gradually open during surges and support your baby’s journey.

Like all muscles, the uterus works best when it has a healthy supply of oxygen, blood flow, fluids and energy. This is one reason why hydration during labour is so important. Staying well hydrated can help circulation, energy levels and efficient contractions (or surges) in labour.

Hypnobirthing techniques focus on working with the body in labour rather than against it. When the uterus is able to work more efficiently, there is less unnecessary tension and fatigue within the muscle helping surges feel more manageable.

TIP - Get a bottle with a straw built in. It can be super annoying having a bottle held to your face by a birth partner…

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