18 Weeks Pregnant: How Big Is Your Baby?
At 18 weeks pregnant, your baby is growing quickly, and this is often when pregnancy starts to feel more real. You may begin to notice more regular movement, and your bump is likely becoming more visible.
How Big Is Your Baby at 18 Weeks?
At 18 weeks, your baby is around the size of a sweet potato, measuring roughly 14 to 15 centimetres long.
Your baby is continuing to grow steadily, gaining strength and developing more defined features.
What Is Happening at 18 Weeks Pregnant?
This is an exciting stage of development, with lots happening behind the scenes.
At 18 weeks:
- Your baby is moving more actively, including kicking and stretching
- The ears are now in position, and your baby may begin to hear sounds
- Facial features are becoming more defined
- The nervous system is developing further
- Your baby’s bones are continuing to strengthen
Although you may not feel every movement yet, your baby is becoming more active each day.
Common Symptoms at 18 Weeks
Many people feel more comfortable at this stage, but some symptoms may still be present.
You might experience:
- A growing baby bump
- Back or hip discomfort
- Increased appetite
- Occasional dizziness
- First noticeable baby movements
Every pregnancy is different, so your experience may vary.
Feeling Your Baby Move
Around 18 weeks, many parents begin to feel their baby move for the first time.
This is often described as:
- Gentle flutters
- A bubbling sensation
- Light taps or movements
If this is your first pregnancy, it may take a little longer to recognise these movements, but they will become more noticeable over the coming weeks.
Looking Ahead to Your 20 Week Scan
You are now approaching your 20 week NHS anomaly scan, which is one of the most detailed scans during pregnancy.
This scan will check:
- Your baby’s development
- Organs and overall structure
- Growth and measurements
- Placenta position
For many parents, this is another important and reassuring milestone.
Pregnancy Support in Consett and the North East
At our clinic in Consett, we support parents at every stage of pregnancy. Whether you’re looking for reassurance in the early weeks or want to see your baby in 4D later on, our scans are designed to give you both clarity and a special bonding experience.
Parents visit us from across Consett, County Durham, Newcastle and the wider North East for trusted, private baby scans in a calm and welcoming environment.
A Stage Full of Movement and Growth
At 18 weeks pregnant, your baby is becoming more active and developed with each passing day. It’s a stage filled with excitement, especially as you begin to feel those first movements and look ahead to your next scan.
What To Expect
Booking Your Appointment
Start your journey by booking your scan appointment online or over the phone. Choose the scan type that best suits your needs and select a convenient time slot. We may contact you for more information if we feel it necessary.
Arriving at the Clinic
We are located in the main building, Prospect House.
There is plenty of free parking available.
The clinic is on the First Floor, accessed via stairs. Please note there is no disabled access.
Check-in Process
Enter the main reception and take a seat. One of our team members will greet you when it's time for your appointment.
You'll be asked to read and sign your booking/consent form.
Relax in our comfortable waiting area while we prepare for your scan.
Having Your Scan
In the scan room, you'll get to see your beautiful baby.
A female chaperone will be present if a transvaginal scan is required (we will always discuss this with you beforehand).
Feel free to ask any questions at any time - this is YOUR scan appointment!
After Your Scan
After your scan, you'll have the opportunity to chat with our midwives about your pregnancy. Who better to ask than a professional midwife? We're here to answer any questions you may have and provide expert advice and reassurance.