Dating scan

MFM mums share their stories plus expert sonographers explain why it happens and what to do if you’re told your due dates are wrong. By Rachel Mostyn. Original date given was 18 December but at the scan it was moved to 31 Dec. Unless you have an early pregnancy scan most of you will be given your estimated due date at the week scan. Of course you have probably already used an online due date calculator. Weird huh? But this will only give you a rough idea. This is especially true if you have an irregular cycle or have been on the Pill for example. Experts say that the scan date can sometimes come out as less pregnant than suggested by your LMP.

Screening tests during pregnancy

To find out what to do if you think you have symptoms, please visit Coronavirus symptom checker. Or visit our encyclopaedia page , which has general information and includes a BSL video. The calculator on this page can help you work out when you might expect your baby to arrive.

A mid-pregnancy anomaly scan forms part of the Antenatal Screening. Programme that is offered to The scan can only look for some problems and is not able to find everything that might be wrong. As part of the scan we will At the Oxford University Hospital NHS Foundation Trust we also offer all women a scan to check.

Standing in the doorway of our soon-to-be-finished nursery, I had a big smile on my face. Being a mum was really the only thing I had ever wanted out of life. A big house, flashy car or glittering career didn’t interest me, I just wanted a family. I met my husband at work at the age of 19 and after a couple of years an innocent friendship turned into something more and in we wed on a sunny August afternoon.

Shortly after, we went to Mexico for our honeymoon and, despite being told previously we would probably struggle to conceive given that I have endometriosis , we were lucky enough to fall pregnant – first try! I had been concerned throughout my pregnancy that I was more pregnant than they were telling me. This point I had bought up with every midwife I have seen throughout my pregnancy, who told me not to worry and that the dating scan must be correct.

We were having a home birth as I was classed as low risk and I didn’t like the thought of delivering in a hospital – friends of mine had worried me with tales of pushy midwives and not being able to have the birth they had imagined, as they seemed to lose control of their birth plan in a hospital environment, which put me right off! I had a very clear idea of what I wanted for my labour – low intervention and minimal painkillers as I wanted a water birth at home.

We wanted to know now if our child had any additional needs so we had time to study and prepare for its arrival. During the pregnancy, we had paid for an additional 3 scans, which included a presentation scan at 36 weeks to check the baby was head down and ready to go!

Can your pregnancy scan give the wrong due date?

Shine uses browser cookies to give you the best possible experience. By using Shine, you agree to our Privacy Policy. Continue Find out more. This information has been written with the help of parents who have had a pregnancy affected by anencephaly. If you have any further questions or would just like to talk to us, please do get in touch.

If you can’t remember the date of your last menstrual period date, an early ultrasound can give you a fairly reliable due date. Ultrasound dating.

Ultrasound scans use sound waves to create a picture of your baby in your womb. The picture will be displayed on a screen that you will be able to see. Most scans are performed by a trained healthcare professional called a sonographer. These scans are painless and there are no risks to you or your baby. A dating scan can be used to confirm your due date if you are unsure of your last menstrual period or your date of conception.

It is usually offered to pregnant women from 10 weeks to 13 weeks gestation, but can be carried out any time from 6 weeks. A nuchal translucency scan might be offered to help you work out the risk of your baby having a chromosomal abnormality. It might be done as part of a dating scan, or it can be done separately. You might be advised to have a blood test with it. It is usually done at weeks gestation.

Most ultrasounds that are done after 10 weeks of pregnancy are performed abdominally. The sonographer will place some gel on your belly, and will rub a hand-held device probe across your belly in order to obtain a picture of your unborn baby. For an abdominal ultrasound during your first trimester , you may need to drink a few glasses of water. This is so your full bladder will push your uterus up out of your pelvis, allowing the baby to be seen clearly in the ultrasound images.

Maternity – Antenatal

These are external links and will open in a new window. More than half of stillbirths in the UK could be prevented if the NHS implemented additional scans, a leading obstetrician has told Panorama. Each year, more than 3, babies are stillborn in the UK, one of the worst rates in the developed world. Prof Kypros Nicolaides says offering all women Doppler scans, which measure blood flow between the placenta and foetus, could save 1, babies a year.

Three-quarters of a million babies are born in the UK each year.

An ultrasound scan will usually be performed around 20 weeks of pregnancy. This scan is optional and is available at What if something is found to be wrong​?

If you attend without a suitable face covering single-use masks are available to buy at the time of your appointment, subject to availability. Private ultrasound dating scan sometimes called 12 week scan or booking scan. We recommend that you present your dating scan results to your usual healthcare professional whose contact details we take at the time of booking. Your choice of a free rescan may be appropriate if we are unable to perform the primary purpose of this scan.

All scans are performed by a qualified Sonographer with diagnostic obstetric scanning experience. Determination of fetal gestation, dating of pregnancy, single or multiple pregnancy confirmation using ultrasound between 12 — 16 weeks gestation, no sexing. A dating scan sometimes called a booking scan will tell you how many weeks pregnant you are and if you are having one or more babies. Very rarely, there may be a problem that is totally unexpected and we are the bearers of bad news.

Never easy to hear, we will ensure you have the time, support and a plan of care arranged. We will continue our course of support for as long as you need us. If you become concerned about any aspect of your scan, the images and recordings you have taken home or you wish to make a complaint, you can contact the clinic where you had your scan and our staff will discuss any concerns that you may have. In the event of unexpected findings: we will offer clear advice on the next steps available to you and will offer to contact the local hospital on your behalf.

Should you receive bad news in your scan you are welcome to take time in private in our clinics to process the news and gather your thoughts before leaving: we never want you to feel rushed.

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If your baby’s size is above the 90th centile line on the growth chart you will be date. Scans can be as much as % inaccurate for predicting the weight so , follow us on Twitter @SWBHnhs and like us on Facebook.

Log in Sign up. Community groups. Home Pregnancy Health Antenatal scans. In this article When will I have my dating scan? How accurate are dating scans? What else will the dating scan reveal? What happens at a dating scan? How big will my baby be at 12 weeks? Can I have a screening test at the same time? Are there any disadvantages to having a scan?

Olivia’s Story

Women also have routine blood tests or ‘blood screening’ to find out the mother’s blood group and several other things. For more information on screening tests please see ‘Resources ‘. Though all the pregnancies considered here began in the usual way with early scans and blood test screening, they all differed subsequently because the baby was found to have problems. See also ‘Having the week scan and further tests’.

The first scan was to check the make-up of the baby – check that there was a heartbeat, check that their arms, legs, head and measure the length of the baby from crown to rump really.

All women will be offered ultrasound scans of their baby at around 12 and 20 weeks. Some women will need extra scans later in the pregnancy for several.

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