Accuracy of dating pregnancy with ultrasound
Your doctor will discuss the reasons for such follow-up, if this is necessary.
We realise this is often an anxious time for parents, while they wait for the next ultrasound to check on their baby.
The corpus luteum will gradually resolve (get smaller) as the pregnancy continues.
At 5-6 weeks gestation, a small gestation (pregnancy) sac is seen within the uterus.
We usually get better images during transabdominal ultrasound if the bladder is partially filled, so to help your examination we ask you to drink water prior to the assessment.
Please empty your bladder 1 hour before your appointment, drink 2 glasses of water and try not to empty your bladder again until after your appointment.
One of the ovaries will have an ovulation cyst called a haemorrhagic corpus luteum.
Transvaginal ultrasound is safe and commonly performed during all stages of pregnancy, including the first trimester. Transabdominal ultrasound involves scanning through your lower abdomen.
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).
Your ultrasound is always performed in the context of your clinical history and the results of previous ultrasounds and investigations.
Your baby will change dramatically in appearance during this early part of the pregnancy.