These antenatal ultrasound scans will check on your pregnancy health and your baby's development in the first trimester
By Associate Professor TAN Thiam Chye Head & Senior Consultant, Dr Michelle LIM Associate Consultant, Department of Obstetrics and Gynaecology, KK Women's and Children's Hospital
What does your baby look like? Are you carrying twins? Is your child healthy? You and your partner are understandably curious. It's a good thing these two first trimester scans will be able to reveal more information:
What it is: Your first ultrasound scan is called a dating scan and will take place between weeks 8 and 12 of your pregnancy. A vaginal probe may be used during the scan. Vaginal scanning is safe and will not pose any danger to your little one.The scan will show your baby snug in your womb's pregnancy sac and you can hear your precious one's heartbeat. You and your partner will also find out if you're having twins or more!
Why it's important: This scan checks if your baby is in the right location. Although rare, the embryo can be implanted somewhere else aside from the womb, such as the Fallopian tubes. This is known as an ectopic pregnancy. Your doctor will also be able to tell you your expected date of delivery (EDD), based on the physical size of your baby, which will help you plan ahead — such as knowing when to apply for maternity leave.
Related: What Happens in the First Trimester?
What it is: This is scheduled between weeks 11 and 14 of your pregnancy, as part of your first-trimester screening for Down Syndrome. This ultrasound scan measures nuchal translucency, which is the collection of fluid lying under your baby's skin at the neck.
Why it's important: This scan screens for the possibility of your baby having Down Syndrome and has a detection rate of 90 per cent. Your doctor will discuss this test with you in greater detail at your appointments.
These scans are important as they allow your doctor to check on your pregnancy health and help you and your partner to prepare better for the journey ahead.
Copyright © 2016 HealthHub.sg. All rights reserved.
Visit Parent Hub, for more useful tips and guides for a healthy pregnancy.
Download the HealthHub app on
Google Play or
Apple Store to access more health and wellness advice at your fingertips.
Read these next
The New Art and Science of Pregnancy and Childbirth 2008, World Scientific
Healthy Start for your Pregnancy 2012, Health Promotion Board Singapore
This article was last reviewed on
22 Nov 2023
The Importance of Sleep
Impact of Haze on health
Did You Know BMI Isn’t The Same For Adults And Kids?
Feeding Your Baby Solid Food: Baby's First Food Journey
Health Screening for Primary School
Directory of Screening Locations
View More Programmes
Youth Preventive Dental Service (YPDS) provides oral health screening for pre-schoolers at some childcare centres as part of the Preschool Oral Health Screening and Fluoride Therapy Programme. Parents may access Healthhub to obtain the 'Information Sheet for Parents', which contains screening outcomes and the recommended follow-up action.
Nutrition Hub helps you achieve your health and diet goals. Get nutrition information, facts and resources to help you adopt a healthier diet.
Most STIs can be treated or managed if discovered early.
Go for a sexual health screening if you think you are at risk of STIs.
Browse Live Healthy
In partnership with