You will always have a choice about whether transvaginal ultrasound is performed.
If you have concerns about transvaginal ultrasound, please discuss this with your sonographer before your ultrasound begins.
A transvaginal ultrasound is usually required to see the baby at this stage of the pregnancy. Although the ultrasound may see your baby, it measures only a few millimetres long, and it is too early to always detect the baby’s heartbeat.
However, in the early pregnancy, the developing embryo is very small (at 6 weeks gestation, the baby is only 5-9mm long) and a transvaginal ultrasound may be required to get a better image of the baby.Transvaginal ultrasound is safe and commonly performed during all stages of pregnancy, including the first trimester. Transabdominal ultrasound involves scanning through your lower abdomen.Transvaginal ultrasound usually produces better and clearer images of the female pelvic organs including the developing pregnancy, because the ultrasound probe lies closer to these structures.The transvaginal ultrasound probe is thin, about 2cm diameter.Pregnancy ultrasounds are performed mainly using transabdominal ultrasound.
For many women, especially after 8 weeks gestation, sufficient information about the baby may be obtained with transabdominal ultrasound only.
Sometimes the results of a first trimester scan may be inconclusive or uncertain, and need to be combined with your clinical history and blood tests (serum Bh CG).
Some women need to return for another ultrasound scan a few weeks later to assess the progress of the pregnancy, or they may require another blood test (serial serum Bh CG).
Before 5 weeks gestation, the developing pregnancy is too small to detect on ultrasound.
The endometrium (the lining of the uterus where the pregnancy will grow) should appear thick and secretory.
We will do our best to answer your questions and minimise your anxiety.