Early pregnancy dating

Early pregnancy scan First trimester screening (12weeks) Non-Invasive Prenatal Testing Chorionic Villous Sampling Amniocentesis Fetal anatomy survey (19weeks) Fetal growth and well being Cervical length assessment Placental localisation Twin pregnancy 3D/4D ultrasound & pregnancy This is a scan done early in pregnancy before 12 weeks of gestation. It is only natural to be curious and concerned about pregnancy and early pregnancy scans can give you peace of mind. Normally it includes a scan across your lower abdomen with a full bladder (trans abdominal scan) and an internal scan (transvaginal scan).

The internal scan does not harm the embryo in anyway and is a standard practice to obtain adequate details of early pregnancy.

The ultrasound will almost always be done through the belly, allowing you to see your baby for the first time.

Accurate measurements and images are taken of the gestational sac, the crown to rump length of the embryo (to accurately date the pregnancy) and the pelvic region.

Fetal limb buds are seen at 9-10 weeks with body movements. The dating is most accurate when the scan is performed between 7-11 weeks.A dating scan is usually the first ultrasound scan you will have when pregnant.The main purpose is to establish the number of weeks you are pregnant and make an estimated date of expected delivery.This first early ultrasound scan also provides you and your consultant with additional important information, such as the number of babies you are pregnant with.Usually this initial scan is taken between 6 and 10 weeks of pregnancy.

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