Occasionally the nasal bone cannot be seen at 11 weeks as it is too early in the pregnancy.If this is the case and this creates some concern then the scan can be repeated a week later.First trimester ultrasonic scans may show 'soft' markers for chromosomal abnormalities, such as an increased fetal nuchal translucency (back of the neck) to enable detection of Down's syndrome fetuses.The test is performed between 11 weeks and 13 weeks 6 days into your pregnancy.If you are unsure of your period dates or have an irregular cycle, we suggest that you contact your doctor, midwife or health care provider as early as possible to arrange for a dating scan.There is no hard and fast rule for the number of scans you should have during pregnancy.The baby will be measured, and the anatomy examined in detail.It is recommended that all pregnant women have a scan in the first trimester at around 12 weeks of pregnancy to confirm their dates.
A third line, almost in continuity with the skin, but at a higher level, represents the tip of the nose.
You do not need to have a full bladder, a moderately filled bladder is needed for a proper examination.
Most parents look forward to their scan because it gives them the first glimpse of their baby.
During the examination, the fetus is seen by abdominal ultrasound.
Occasionally the view is not clear and it may be necessary to perform a vaginal scan.
It is this black space that you will see measured during the ultrasound scan.