Dating Scan

When Is the Dating Scan Done?

• Confirm the pregnancy — to make sure it is developing normally inside the womb.
• See the baby’s heartbeat — usually visible from around 6 to 7 weeks.
• Estimate how far along you are — by measuring the baby’s size (called crown-rump length).
• Check for multiple babies — to see if you are expecting twins or more.

What the Scan Can Show

• The gestational sac – the fluid-filled space that holds the baby.
• The fetal pole – the tiny baby that can be seen as early as 6 weeks.
• The heartbeat – a small flicker on the screen that confirms a healthy pregnancy.
• The uterus and ovaries – to check that everything looks normal.

How the Scan Is Done

• The scan is done on your tummy using a safe ultrasound probe.
• If it is still very early (before 7 weeks), the doctor might suggest an internal scan for a clearer view. This is a small probe gently placed inside the vagina and is completely safe.
• No fasting is needed, but having a slightly full bladder can make the image clearer.

Why the Dating Scan Is Important

• Confirms a healthy pregnancy and that the baby is in the womb (not outside the uterus).
• Sees the baby’s heartbeat, which is the best sign of a developing pregnancy.
• Estimates your due date accurately.
• Detects early problems, such as ectopic pregnancy (baby growing outside the womb) or risk of miscarriage, so they can be managed early.
• Helps the doctor plan the right time for your next scans and tests.

What to Expect

• You will see your baby on the screen for the first time.
• The doctor will explain your baby’s size, heartbeat, and estimated due date.
• You will receive printed or soft-copy photos of your scan.
• The results will be recorded in your Pink Book, which you can bring to government or private hospitals for future visits.

Frequently Asked Questions (FAQ) – Dating Scan