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8-Week Private Scan: What You'll See

An 8-week private scan is a wonderful milestone. Your baby has grown significantly and looks more like a tiny person, the heartbeat is strong and easy to detect, and the scan is usually very reassuring. Here's what to expect.

Table of Contents

  1. What You'll See at 8 Weeks
  2. Your Baby's Development at 8 Weeks
  3. The Heartbeat at 8 Weeks
  4. How the Scan Is Done
  5. What the Sonographer Checks
  6. What If There's a Problem?

What You'll See at 8 Weeks

At 8 weeks, your baby is about 15-20mm long — roughly the size of a raspberry. On the ultrasound screen, you'll see:
  • The gestational sac: Still visible, though the baby is starting to fill more of it.
  • The yolk sac: Still present but becoming less prominent as the placenta begins to develop.
  • Your baby: Now looking recognisably baby-shaped. You can make out a large head, a curved body, and tiny limb buds. The baby looks a bit like a kidney bean or a little gummy bear.
  • The heartbeat: Strong and clearly visible. It looks like a rapid flicker in the centre of the baby's chest.
  • Movement: You might see the baby wiggling — tiny twitches and shifts as they move around. This is a thrilling moment for many parents.

By 8 weeks, the baby is big enough that the scan feels more like "seeing your baby" than at 6 or 7 weeks, where it's more of a smudge. You may even be able to take a recognisable photo home.

Your Baby's Development at 8 Weeks

At 8 weeks, your baby is developing rapidly:
  • Limbs: Arm and leg buds are forming and starting to show signs of joints.
  • Head: The head is large relative to the body, and the brain is developing quickly.
  • Facial features: Eyes are starting to form, with pigment appearing in the retinas. The tip of the nose is visible.
  • Heart: The heart now has four chambers and beats at around 150-170 bpm — much faster than yours.
  • Fingers and toes: The beginnings of fingers and toes are appearing on the limb buds.
  • Movement: The baby can move, though you won't feel it for many weeks yet.

The Heartbeat at 8 Weeks

At 8 weeks, the fetal heart rate is typically between **150 and 170 beats per minute**. The heart rate peaks around 9-10 weeks and then gradually slows. This fast rate is completely normal — your baby's heart needs to beat quickly to circulate blood effectively at their tiny size.

The heartbeat is usually very easy to see at 8 weeks, even on an abdominal scan (though transvaginal is still clearer for some women). Seeing that strong, steady flicker is one of the most reassuring moments of early pregnancy.

How the Scan Is Done

At 8 weeks, many clinics will try an **abdominal scan first**. The baby is now big enough that it can often be seen through your tummy, especially if you have a full bladder. If the abdominal view isn't clear enough, the sonographer will switch to transvaginal.
  • Abdominal scan: You'll lie on the couch, gel will be applied to your tummy, and the probe will move across. You may need a full bladder — check with your clinic.
  • Transvaginal scan: If the abdominal view is unclear, the sonographer will use a transvaginal probe for a closer look. You'll need to empty your bladder first.

The scan takes 10-20 minutes, and you'll usually be able to see the screen throughout.

What the Sonographer Checks

At 8 weeks, the sonographer will:
  • Measure the crown-rump length (CRL): To date the pregnancy accurately. At 8 weeks, the CRL gives a due date accurate to about 5 days.
  • Confirm the heartbeat: Check it's present and measure the rate.
  • Check development: Look at the overall shape and structure of the baby, confirming growth is on track.
  • Check the gestational sac and yolk sac: Ensure they look normal.
  • Count the babies: Twins are clearly visible by 8 weeks, with two separate heartbeats.
  • Confirm uterine location: Rule out ectopic pregnancy (though by 8 weeks this would usually have caused symptoms).

What If There's a Problem?

Most 8-week scans are reassuring, but sometimes issues are found:
  • No heartbeat: If the baby measures 8 weeks but has no heartbeat, this may indicate a missed miscarriage. The sonographer will measure carefully and may ask you to come back in 7-10 days to confirm, especially if there's any uncertainty about dates.
  • Small baby: If the CRL is smaller than expected, your dates may need adjusting, or the baby may not be growing as it should. A repeat scan will check for growth.
  • Slow heartbeat: At 8 weeks, a heart rate below 100 bpm is concerning, though it doesn't always mean the worst. A repeat scan is needed.
  • Subchorionic haematoma: Sometimes a small blood clot is seen between the uterine wall and the gestational sac. These often resolve on their own, but you should report any bleeding to your midwife.

If any concern is raised, the sonographer will explain the findings and arrange follow-up. Private clinics will usually advise you to contact your GP or NHS midwife for ongoing care.

Frequently Asked Questions

### Can I find out the gender at 8 weeks?

No. At 8 weeks, external genitalia haven't developed enough to determine gender. Gender can sometimes be predicted from 16 weeks, but not at 8.

Will I see the baby move at 8 weeks?

Possibly. At 8 weeks, babies can move, and some parents see tiny twitches on the scan. You won't feel this movement until much later (around 16-24 weeks).

Can the 8-week scan date my pregnancy accurately?

Yes. The CRL measurement at 8 weeks is accurate to about 5 days. This is one of the most reliable times to date a pregnancy.

Further reading:

This article is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider.

Last reviewed: June 2026

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