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SANFI Diagnostics

Pregnancy scans · 8–12 weeks

Dating Scan

Pins down your due date by measuring the baby, and confirms an ongoing single or multiple pregnancy. Useful if your cycle is irregular, you are unsure of your dates, or you simply want an accurate date before your first maternity appointment.

Illustration of an ultrasound scan view with a heartbeat at its centre

Performed and reported by accredited clinicians.

When
8–12 weeks
Duration
20 minutes
Price
€110, report included

About this scan

What this scan involves

A dating scan is performed between eight and twelve weeks. Its main purpose is to establish how far along the pregnancy is, and from that, your expected due date.

Why measuring is more accurate than counting

Due dates worked out from the first day of your last period assume a regular cycle and ovulation on day fourteen. Many pregnancies do not fit that pattern. Measuring the baby directly in the first trimester, when all babies grow at a very similar rate, is generally accurate to within a few days.

What else is checked

As well as measuring the crown-rump length, the sonographer confirms the heartbeat, checks whether there is one baby or more and, if there are twins, looks at how they share the placenta and sac, which matters for how the pregnancy is looked after.

When to have it

The best time for this scan

Ideal timing: Nine to eleven weeks.

  1. 8 to 9 weeks

    Accurate dating and a clear heartbeat, though the baby is still small on screen.

  2. 9 to 11 weeks

    The best balance: precise measurement and a recognisable baby with head, body and limbs.

  3. 11 to 12 weeks

    Still accurate. If you are in the 11 to 14 week window, the Nuchal Translucency Scan includes dating and adds screening.

What we check

Looked at during the scan

  • The crown-rump length, to establish your dates and due date
  • The heartbeat
  • Whether there is one baby or more
  • For twins, how they share the placenta and sac
  • That the pregnancy is inside the uterus
  • The uterus and ovaries

What's included

€110, nothing added at reception

  • The ultrasound examination, performed by an accredited sonographer or consultant
  • A written report by a consultant radiologist, stating the estimated due date
  • Printed images to take home

The price you are quoted is the price you pay. No separate reporting fee, no consultation surcharge.

Why people book it

You might choose this scan if

  • You are unsure of the date of your last period
  • Your cycle is irregular or you conceived soon after stopping contraception
  • You want an accurate due date before your first maternity appointment
  • To confirm the pregnancy is progressing before telling family
  • To check for twins

What to expect

Before, during and after

1

Before your scan

Attend with a comfortably full bladder. If you know the date of your last period, bring it, along with any earlier scan results.

2

During the scan

The scan is done through the abdomen with warm gel and a hand-held probe, and takes around twenty minutes. Occasionally a transvaginal scan is suggested for a clearer view; if so, it is explained first and only done with your consent. You can watch the screen throughout.

3

After your scan

You are told the findings and your estimated due date on the day. The written consultant report follows, typically within three working days, and goes to your GP or maternity unit with your consent.

How to prepare

Attend with a comfortably full bladder.

Book your Dating Scan

€110 including the consultant report, 20 minutes. Choose a time online, or send an enquiry and we will call you back, usually within one working day. If you need to reschedule, please let us know as early as you can.

Questions

Frequently asked

Do I need a referral?

No. You can book this scan yourself.

My dates from the scan are different from my own. Which is right?

In the first trimester the scan measurement is the more reliable of the two, and it is what maternity units generally use to set the due date. Your report will state the scan-based date so you can bring it to your first appointment.

Can the scan tell the baby's sex?

Not at this stage. The Gender Scan is offered from sixteen weeks.

Can I bring someone?

Yes. One adult guest is welcome in the room.

Does this replace my hospital booking scan?

No. A private scan complements the antenatal care provided by your maternity unit; it does not replace it.