What to Expect at Your 12-Week Scan
A Gentle Guide to One of the First Big Moments in Pregnancy
The 12-week scan is often one of the most emotional moments in early pregnancy. It’s the first time many parents see their baby — wiggling, stretching, maybe even sucking a thumb — and it can make everything start to feel real.
Whether you’re feeling excited, anxious, or a mix of both, knowing what to expect can help calm your nerves and prepare you for this important appointment.
Here’s a gentle guide to help you feel informed, grounded, and ready.
What Is the 12-Week Scan?
Also known as the dating scan, the 12-week scan is usually offered between 11 and 14 weeks of pregnancy. It’s part of routine NHS antenatal care in the UK and is one of the first chances to check on how your pregnancy is progressing.
What Is It For?
The main purposes of the 12-week scan are to:
Confirm your due date
Measurements of your baby (particularly the crown-to-rump length) will help date your pregnancy more accurately than your last period.Check how many babies you’re carrying
Twins or more? This is when you'll likely find out.See how baby is developing
The sonographer will check for heartbeat, movement, and physical development.Screen for chromosomal conditions (optional)
If you opt in, this scan is also part of the combined screening for conditions like Down’s syndrome (trisomy 21), Edwards’ syndrome (trisomy 18), and Patau’s syndrome (trisomy 13). This involves measuring fluid at the back of baby’s neck (nuchal translucency) and combining it with a blood test.
What Happens During the Scan?
You’ll usually be asked to arrive with a full bladder, which helps give a clearer view of baby via the abdominal ultrasound.
A gel will be applied to your belly, and the sonographer will move a handheld device (transducer) across your lower abdomen to capture images.
The scan typically takes around 20–30 minutes, but may take longer if baby is in a tricky position.
You’ll likely see your baby on the screen, and you may be able to take home a printed image (check in advance if your hospital charges a small fee for this).
Will I Find Out the Sex?
Not at this stage. The sex of your baby is not usually visible or confirmed at the 12-week scan. If you choose to find out, this is usually offered at the 20-week scan or through private testing.
What Might I Feel?
It’s totally normal to feel:
Excited to see your baby for the first time
Nervous about whether everything looks okay
Emotional, even if you weren’t expecting to be
Disconnected or uncertain, especially if the pregnancy has felt abstract so far
All feelings are valid — this is a big moment. If something feels overwhelming, let the sonographer or your partner know. You can ask questions throughout the scan.
What If Something Unexpected Is Found?
Sometimes, the scan might reveal something unexpected — like a missed miscarriage or a possible concern that needs follow-up. If this happens, you’ll be supported by the sonographer and referred to a specialist midwife or doctor who will explain everything gently and clearly.
Try to remember: you don’t have to process it all at once. There will be time, space, and support.
Can I Bring Someone With Me?
In most hospitals, yes — you can bring a partner, friend, or family member. Check with your maternity unit in advance, especially if visiting guidelines are still in place due to local policies.
Tips Before Your Appointment
Drink water beforehand, as advised (usually around 500ml an hour before your scan)
Wear comfy clothes — you’ll need to expose your lower belly
Bring coins or card if your hospital offers printed scan photos
Prepare questions — anything you’re unsure about is worth asking
Give yourself time afterwards — whether to celebrate, reflect, or rest
Final Thoughts
The 12-week scan is more than just a check-up — it’s a moment that often stays with you for years. A tiny heartbeat on a screen. A first glimpse of the life you’re growing. A chance to breathe out a little, or take your next deep breath.
Whatever emotions it stirs, know this: it’s okay to feel all of them. This is your journey — and you’re doing beautifully.
At Neutral Nest, we’re here for the tender in-between moments of pregnancy — with calm guidance, heartfelt support, and the quiet reminder that you’re never alone.