Dating scan Amsterdam
A dating scan is the first official scan of your pregnancy. At Pregnanta Maternity Care in Amsterdam we usually carry out this scan between weeks 10 and 12. It allows us to determine very accurately how far along you are and to set your due date. The date is also included on your pregnancy statement (zwangerschapsverklaring), which you need to apply for maternity leave from your employer. The 12-week scan is covered by your health insurer. Would you like to make an appointment for your first dating scan? Contact us on 020-775 99 27. You can reach us by phone on weekdays between 08:30 and 12:00. Outside opening hours, contact us at verloskundigen@pregnanta.nl or use the button below.
What is a dating scan?
A dating scan is an ultrasound examination that measures how far along your pregnancy is. Ultrasound means we use sound waves to create images of the inside of your body. The scanner sends out inaudible sound waves and picks up the echoes, which are then converted into a moving image on the screen. This examination is completely safe for you and your baby. During the dating scan we measure the length of the embryo from crown to rump (CRL measurement). Based on this, we calculate your due date. During the scan we also check whether there is more than one embryo and whether it has implanted properly in the womb. We check the heartbeat to confirm that the pregnancy is viable.
When do you have a dating scan?
The dating scan usually takes place between weeks 10 and 12 of your pregnancy. It can sometimes be done earlier, from about week 8. However, weeks 10-12 are preferred because the result is much more accurate. At week 11 the view and measurement are often the most reliable, and at week 12 the margin of error compared with the date determined later is already somewhat larger. If you are already more than 14 weeks pregnant, it is harder to measure exactly how far along you are with a scan, because growth varies more by then.
Why is a dating scan important?
- Determining your due date (important for your pregnancy statement, leave, screening and check-ups).
- Confirming that the heart is beating (viability).
- Seeing whether there is one baby or more.
- Checking that the embryo has implanted properly in the womb (so not an ectopic pregnancy).
- Giving insight into growth and development so far, and possible abnormalities (if you want to know).
Is a dating scan an internal or external scan?
We usually do an external scan (via the abdomen). For a good image, it helps to come with a full bladder; this “pushes” the womb into a better position. If the embryo is too small or not clearly visible, we use an internal (vaginal) scan. For this, an empty bladder is preferred. The internal scan is safe and not painful. We use a long, slim probe about 1.5 cm thick, covered with a condom and lubricant, which gets closer to the womb. This gives us a clearer image of your baby.
Can you see the sex at a dating scan?
In most cases the sex is not yet visible at the dating scan (10-12 weeks). The genitals are often not developed clearly enough yet. Many people only find out the sex of their baby at the 20-week scan. If you would like to know sooner, this is usually possible from week 15-16. Book a souvenir scan with our sonographer in the Vogelbuurt or on Zeeburgereiland.
Can the scan show if something is wrong with my baby?
Yes, unfortunately it sometimes happens that the dating scan shows that something is not right with the foetus. This could be a miscarriage or an abnormality of the foetus, for example. If this is the case, we will discuss the options together. Of course, you may also not want to know whether your baby has an abnormality. If so, please let us know before the scan begins.
How accurate is a dating scan?
The earlier (within 10-12 weeks), the more precise the result. The CRL measurement (your baby’s crown-rump length) usually gives an accuracy of within ± 5-7 days around this period. After 14 weeks, all babies grow at their own pace.
Practical information & preparation
- You usually need a referral from your midwife or GP, depending on your situation.
- Come with a full bladder for an external scan, and with an empty bladder for an internal scan.
- Keep your pregnancy statement to hand (it contains the due date after the dating scan, which you need for leave etc.).
- Everything is done at the practice by a medically trained midwife or sonographer.
Costs & insurance cover
With most health insurers, the dating scan is covered by basic insurance. There is usually no personal contribution for the standard dating scan, provided your midwife or practice is recognised (check your policy for this). The due date we set is stated on your pregnancy statement, which is important for applying for maternity leave etc.
First dating scan at Pregnanta Amsterdam
Book your dating scan between the 10th and 12th week of pregnancy for the highest accuracy. Make an appointment at our location in the Vogelbuurt (Amsterdam-Noord) or on Zeeburgereiland (Amsterdam-Oost).