We are not supporting this browser

Pregnancy

      The 20 week scan

      What do I need to know about the 20 week scan?

      It's known as the big scan for a reason - the 20 week scan is really is an important milestone in your pregnancy.

      Lots of mums to be like to bring someone with them to the scan, whether it's your partner, your mum or your sister.  Most hospitals only allow one person to attend with you.

      What will happen?

      This scan is very similar to what will happen at your 12 week scan. It will generally take between 30 minutes and an hour, which is longer than your first scan. This is because it’s looking at more specific aspects of your baby’s development. It's recommended to go into your scan with a full bladder.

      What will I learn about my baby?

      1. If you haven't found out already, you may be able to learn the gender of your baby. (If you want to know) This can be a very exciting moment for parents to be but don't be disappointed if they can't tell you for sure - it does depend on what way your baby is lying at a particular time.

      2. From 20 weeks, the sonographer can clearly see individual structures in your baby, structures such as the heart and brain.  The sonographer will look in detail at your baby’s organs and and their general anatomy to check everything is forming well. This will allow them to check for any possible issues such as cleft lip.

      3. The sonographer will check the location of your placenta to see if there will be any possible impact on how you will deliver the baby.

      4. They will check and measure the amount of your amniotic fluid.

      The big scan is an exciting and emotional milestone - if you have any concerns or worries don't hesitate to call our Careline on 1800 570 570.

      Any more questions?

      Our specialist baby advisors and experienced mums are here to talk and ready to help whenever you need them. You can call us or reach us on Live Chat 8.30am-5.30pm Monday-Friday.

      Join the C&G baby club today

      Join the C&G baby club today

      • Weekly emails with tips and advice for your stage
      • 1-to-1 support from our dedicated Careline team, 8.30am - 5.30pm Monday to Friday.
      Join us now

      More from pregnancy

      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.