Skip to content
Lumina Clinic

Guide

Gender scan or early gender blood test: which should you choose?

Both can tell you whether you’re having a boy or a girl, but at different stages and in different ways. Here’s how they compare on timing, accuracy and experience.

By the Lumina Clinic team. Updated .

Parent receiving a printed ultrasound picture of their baby

Finding out whether you’re having a boy or a girl is one of the most exciting moments of pregnancy. At Lumina, you can find out from a blood test as early as 6 weeks or see it on a scan from 15 weeks. Here’s how to choose.

Early Gender Blood Test (from 6 weeks)

Your blood contains small fragments of your baby’s DNA. The Early Gender Blood Test looks for DNA from the Y chromosome, which only boys have.

  • When: from 6 weeks
  • How: a simple blood sample from you
  • Best for: finding out as early as possible

Early Surprise Gender Scan (from 15 weeks)

The Early Surprise Gender Scan uses ultrasound to see your baby’s anatomy, in our private gender reveal suite.

  • When: from 15 weeks
  • How: a 5–10 minute 2D scan, with a 4D sneak peek when baby’s position allows
  • Best for: seeing your baby and sharing the moment with up to 5 guests
  • Includes: prints, 5–6 digital images, a wellbeing report and a free re-scan if needed to confirm

Side by side

Blood test

Scan

Earliest

6 weeks

15 weeks

You see your baby

No

Yes

Guests

Up to 5

Wellbeing check

No

Yes

Price

£125

£80

Why not both?

The Double Discovery Package combines the Early Gender Blood Test with an early gender scan, so you find out early and then see it for yourself.

Planning a gender reveal?

Just ask, and we’ll seal your result in an envelope for your party or cake maker, so you can find out together with family and friends.

Frequently asked questions

Which is more accurate, a gender scan or blood test?

Both are highly accurate when done at the right time. The blood test depends on enough of your baby’s DNA being present; the scan depends on your baby’s position. If a scan isn’t clear, we offer a free re-scan.

Book with us

  • Laboratory technician handling blood sample tubes

    From 6 weeks

    Early Gender Blood Test

    Find out whether you’re having a boy or a girl from as early as 6 weeks of pregnancy, from a simple blood sample from mum.

  • Parent receiving a printed ultrasound picture of their baby

    15–35 weeks

    Early Surprise Gender Scan

    Find out if you’re having a boy or a girl from 15 weeks in our private gender reveal suite, with digital images and a 4D sneak peek when baby’s position allows.

  • Laboratory technician handling blood sample tubes

    From 6 weeks

    Double Discovery Package

    Find out your baby’s sex twice over: an Early Gender Blood Test from 6 weeks, followed by an early gender scan at the right time to see it for yourself.

    £154

Questions about which scan or test is right for you?

Our team is happy to help you choose. Call us or book online in under a minute.