These phases are: During the first trimester, the pregnancy progresses from a tiny gestational sac with no visible embryo, to an ~80 mm fetus with identifiable features and internal organs.Early pregnancy can be a very exciting time and often couples want to see their baby as soon as possible. We recommend that you present your dating scan results to your usual healthcare professional whose contact details we take at the time of booking.Your choice of a free rescan may be appropriate if we are unable to perform the primary purpose of this scan.There is a small chance that a transvaginal scan may need to be performed in order to get a clearer view.Some patients prefer this method of scanning as the resolution of the image is better, improving the accuracy of the measurements and the clarity of the pictures.All scans are performed by a qualified Sonographer with diagnostic obstetric scanning experience.
Need to expose abdomen so ideally wear 2 piece garments i.e trousers or skirt and top.
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.
A pregnancy sac is visible usually at 5 weeks of gestation (calculated from the last menstrual period).
A yolk sac becomes visible inside the pregnancy sac as the pregnancy grows and the mean sac diameter reaches 8-10mm.