My dating scan is wrong why chicago dating illinois in services
Ultrasounds performed during the first 12 weeks of pregnancy are generally within 3 - 5 days of accuracy.
The most accurate time is between 8 and 11 weeks gestation.
The EDD from the early dating scan is used - if the last menstrual period is not known or is unreliable, or the dating scan differs from the last menstrual period dating by more than 5 days.
As the baby gets bigger, it starts to express its individual growth potential.
However I had a scan at 13 weeks and we can see some Susan signs it's a boy. So until the 20 week scan we will assume we don't know. However if they don't find the Y it could be a boy or girl.
To be honest after loosing my baby boy with Down syndrome last year I am just wanting a healthy baby and don't care about the sex. But my doctor said that as it's the Y chromosome they look for only (boy) if this is not found then by way of elimination only they assume it's a girl. Read a thread on another group and this was happening a lot and mainly with harmony.
My fetal DNA was 12.8% which from what I've read seems to be a decent amount.
If you have more than one ultrasound during your pregnancy, giving you 'multiple dates', then the earliest ultrasound estimate should be used, because it will be more accurate.the baby and its heart beat can be detected relatively easily with trans-abdominal and trans-vaginal examination.