After confirming a positive pregnancy test, the next step is often an ultrasound to assess the development of the pregnancy. One of the key indicators that healthcare providers look for during this ultrasound is the gestational sac.
The gestational sac is the first structure that becomes visible on an ultrasound and typically appears between 3 and 5 weeks gestational age. It encloses the developing baby and contains amniotic fluid, providing a protective environment for the embryo.
