- week pregnancy dating scan - NHS
- Time for your 12-week scan? Here's what to expect...
- When is a dating scan necessary?
- We value your feedback
- Can you only have your 12-week scan at 12 weeks?
A dating scan might be recommended 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. If you have had bleeding during your pregnancy or you have had previous miscarriages , your doctor or midwife may recommend an early dating scan from 6 to 10 weeks gestation.
week pregnancy dating scan - NHS
If you choose to have a dating scan, it will most probably be your first scan. You will need to get a referral from your doctor or midwife for a dating scan.
A dating scan is carried out by ultrasound. A sonographer, who is usually a radiographer or a midwife trained in ultrasound, will complete your scan. If the scan is after 10 weeks, ultrasound recordings are usually made through your abdomen. The sonographer will put gel on your abdomen and move a hand-held device called a transducer, back and forward over your skin. In some situations, such as when the scan is completed before 10 weeks of gestation or you are overweight, you may also need a vaginal scan.
Your sonographer will let you know if this is needed.
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For an abdominal dating ultrasound, you will need to have a full bladder. You may be asked to drink some water and not go to the toilet beforehand because a full bladder helps to push your womb up to give a better picture. For a vaginal scan, you can have an empty bladder. This will provide a fairly accurate estimate of how many weeks pregnant you are.
But it is important to remember that only a few women go into labour on their due date, so it can be more helpful to think about the month in which you are expecting your baby, rather than the exact day. Information on pregnancy ultrasound scans including when they are taken, what it can be used for, dating scans, anomaly scans, plus links to trusted resources.
This Dads Guide to Pregnancy article covers early pregnancy scans and screening, plus normal fetal development and early miscarriage for men, by men. In the second trimester of pregnancy, you may be offered to have an morphology scan anomaly scan. Learn about what it looks for and when it is performed. A nuchal translucency scan is part of the ultrasound scan that may give an indication of chromosomal abnormality. Learn more about how and when it is performed.
During your pregnancy, you will be offered a number of tests and scans. The aim is always to check on the health of you and your baby, but it can sometimes be overwhelming and confusing. Handy infographic that shows what you can expect at each antenatal appointment during your pregnancy.
Time for your 12-week scan? Here's what to expect...
In the meantime, we will continue to update and add content to Pregnancy, Birth and Baby to meet your information needs. This information is for your general information and use only and is not intended to be used as medical advice and should not be used to diagnose, treat, cure or prevent any medical condition, nor should it be used for therapeutic purposes. The information is not a substitute for independent professional advice and should not be used as an alternative to professional health care.
Occasionally there is some discomfort from probe pressure on a full bladder or from the vaginal probe manipulation. If this is extremely painful please let us know.
An ultrasound scan uses high-frequency sound waves to create images of the inside of the body. Sound waves are used instead of radiation which makes them safe. Ultrasound can be safely used during pregnancy. You will need to arrive with a full bladder before you have your scan. A full bladder allows us to see your uterus and ovaries more clearly.
When is a dating scan necessary?
We normally recommend that you have 2 glasses of water a half hour before you arrive for your scan. The sonographer will place gel on your tummy and which allows the probe to move more freely over your tummy. Pressure will be applied but this is usually not painful to you or harmful to the baby. We like you to have a full bladder as it makes it easier for us to see your uterus and ovaries from across your tummy.
We also have a look at your kidneys as occasionally the baby can lie on your ureter which drains the urine from your kidneys causing you some problems later in the pregnancy.
We value your feedback
So we like to know your kidneys are normal at the start of your pregnancy so if a problem arises later we know it is your baby causing the issue! After we scan across your tummy we will then send you to empty your bladder. We like to do a vaginal scan as this gives us better visualization of your developing baby and where the pregnancy is developing in your uterus. You will be able to see the difference in the clarity of the scan across your tummy compared to a vaginal scan on our wall-mounted monitors.
After your scan the sonographer will leave the room to discuss the images with the radiologist or obstetrician who may require more images to be performed. This is normal practice and nothing to be alarmed about. Once you have been given your expected due date at your dating scan, the next scan will be the week scan. Log in to view your images online Search. Home What we do Obstetrics Dating Scan. This is an ultrasound scan that is performed early in the pregnancy. What to expect on the day?
The scan takes 30 minutes to perform. You will be called by the sonographer who will take you to the scanning room. Please come with a full bladder which will make it easier to obtain images of the uterus. Risks Ultrasound is safe to use throughout your pregnancy. Benefits You will be able to get your expected due date of your baby on the day.
Can you only have your 12-week scan at 12 weeks?
You will be made aware if there is anything of concern on the day. If you have any questions you will be able to ask our on-site radiologist. Common questions about this scan What is an Ultrasound scan?