- Time for your 12-week scan? Here's what to expect...
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- 12 Week Scan: It's Time For Your Scan, Here's What To Expect | Mother&Baby
Your sonographer will be able to answer any questions you have on the day and will talk you through the process. What will the dating scan involve?
Time for your 12-week scan? Here's what to expect...
This can be a bit uncomfortable if you have to wait with a full bladder but it does put your uterus in a better position for scanning. The process will involve lying back on a bed, with gel applied to your belly. The sonographer will then use a transducer device which uses ultrasound to produce an image of your baby inside the womb to a small display screen next to you.
The scan will usually last for around 20 minutes.
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The average weight is less than 1 gram. Obviously, every pregnancy is unique and individual factors influence the size of the embryo at this early stage, and the embryo shows development week by week. The ideal time for a sonographer to assess the gestational age in the first trimester is between weeks of pregnancy. This is the period of time which provides the most accurate assessment. Generally, ultrasounds which are performed in the first trimester are within days of being accurate in terms of assessing gestational age.
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This is because although every little embryo is unique, there are still defining characteristics of development which apply to all embryos at particular stages of early gestational development. As the embryo matures to a foetus, individual genetics and growth factors influence its growth. This is why an early pregnancy dating scan, rather than one done in the later stages of pregnancy, is considered more accurate when assessing the expected date of delivery. With maturity, the size of the baby correlates less to its age than in the early weeks.
There are two ways of having a seven week ultrasound. One is via the abdomen — transabdominally and the other is through the vagina — transvaginally. Some sonographers believe that at seven weeks of gestation, transvaginal ultrasound provides the best and most accurate visualisation. With this form of scan it is not as necessary for the mother to have a full bladder.
Later on as the pregnancy progresses, a full bladder is not necessary as the enlarging uterus is no longer contained in the pelvic rim.
In very early pregnancy, the embryo and pregnancy sac may simply be too small to see very much at all. But with every day which passes, the embryo becomes bigger and more advanced in its development. Here's what to expect Time for your week scan? Can you only have your week scan at 12 weeks? Will I find out the gender of my baby at 12 weeks? Getting ready for your week scan First things first, keep those nerves in check.
Where do you go for your week scan? You will get a hospital appointment with a sonographer for your scan. How long will the scan take?
But it might take longer if your baby is lying in an awkward position. What happens during the week scan?
12 Week Scan: It's Time For Your Scan, Here's What To Expect | Mother&Baby
The gel makes sure there is good contact between your skin and the device. The sonographer will tuck tissue paper around you to protect your clothing from the gel. A black and white image of your baby will appear on the ultrasound screen, which the sonographer will position so they get a good view. You might be offered a vaginal scan instead, if your womb is sitting very deep in your pelvis, or if you are overweight. This type of scan will allow the sonographer to get closer to your baby. What happens if a problem is found at the week scan?
The pregnancy myths that hint at your baby's gender: Related content by tag: Your Guide to Every Pregnancy Scan Each pregnancy ultrasound scan is pretty exciting you get to see your baby and slightly scary just what will you see? Ovulation calculator Trying for a baby?