The browser you are using is too old for our website. Please visit from Chrome and you will be able to browse normally.


      23 Weeks pregnant

      Dad Bonding With Baby Bump Week 23

      23 Weeks pregnant

      Turn up the volume

      Your baby is putting on weight and has full hearing by week 23 of your pregnancy. Their skin is growing rapidly and still has a transparent appearance, although that is set to change soon. As well as supporting bones, calcium helps muscles to function properly and should still form an important part of your balanced pregnancy diet.

      Foetus Pregnancy Week 23

      Your baby's development at 23 weeks

      Gaining weight fast in week 23

      You’re over halfway through your pregnancy and your baby is gaining weight rapidly. By the time you're 23 weeks pregnant they will have reached around 20cm in length and weigh about 450g (just under 1lb).

      Most mums can already feel their baby moving by this time – they will kick and twist and turn and stretch, and now even have the ability to grasp the umbilical cord if it passes near their hand. Your baby’s developing skin is still transparent at this stage and because it grows faster than their body can put on weight, it looks slightly saggy. As they lay down more fat stores, it will lose its delicate appearance and begin to look more plump.

      Research shows that deep voices are easier for your baby to hear from within the womb.

      Your baby’s hearing is well developed now, and they can hear your own voice as well as other people’s. If your partner needs extra encouragement to talk to your baby, you can let them know that studies have shown deeper male voices to be easier for babies to pick up.

      Calcium – the future for healthy bones

      Calcium is important for both you and your baby, and should form a key part of your balanced diet.

      The RNI for calcium is 1200mg per day during pregnancy, all of which should be available from a healthy, balanced diet.

      Essential for building bones and teeth, calcium also supports normal muscle function, helps blood clot; and promotes the development of healthy muscle tissue and nerve function.

      During pregnancy your body becomes more efficient at absorbing calcium, but it’s still important to make sure your diet contains calcium-rich foods. The Recommended Daily Allowance (RDA) for calcium is 1200mg per day during pregnancy, which increases from 800mg per day for women of child bearing age. All of this should be available from a healthy, balanced diet.

      Next steps

      Add some of these foods to your shopping list to help boost your calcium intake:

      • Dairy products, including pasteurised milk, yogurt and cheese (not soft blue cheese, or soft cheese with a white rind)
      • Fish with edible bones (like sardines)
      • Nuts and seeds, especially almonds and sesame seeds
      • Figs or dried apricots
      • Green vegetables like curly kale or spinach
      • Tofu
      • Calcium-fortified breakfast cereals
      • Calcium-fortified drinks such as some soya milks

      Your baby, this week

      Discover the science behind your baby's developments, week-by-week

      Join now for free

      Related articles

      Questions about feeding and nutrition?

      Our nutritionists and feeding advisors are always on hand to talk about feeding your baby. So if you have a question, just get in touch.

      Your baby, this week

      Discover the science behind your baby's developments, week-by-week

      Join now for free

      Your privacy is important to us and therefore we would like to explain how we use cookies on this website. With your consent, we will use cookies to measure and analyse how our website is used (analytical cookies), to tailor it to your interests (personalisation cookies), and to show you relevant advertising and information (targeting cookies) we think you will like. For more information please read the cookie statement.

      Privacy Settings

      You can choose your preferences anytime for cookies and tracking. For more information please read our cookie policy.

      • Strictly necessary

        They are necessary for the website to function and cannot be switched off. They are usually only set in response to actions made by you which amount to a request for services (setting your privacy preferences, logging in, filling in forms, etc.). You can set your browser to block or alert you about these cookies, but some parts of the site will not then work.

      • Analytical cookies

        They allow us to count visits and traffic sources, to measure and improve the performance of our site. They show us which pages are the most and least popular and how visitors move around the site. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

      • Personalisation cookies

        They enable website’s enhanced functionality and personalization. They may be set by us or by third parties whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

      • Targeting cookies

        They may be set through our site by our advertising partners, to build a profile of your interests and to show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.