With extensive experience, you will receive the most precise information regarding your pregnancy. Typically, this assessment occurs during the first trimester to verify the pregnancy and estimate its duration. The primary purpose of an early pregnancy ultrasound is to determine the gestational age of the fetus, providing a more accurate due date. During this ultrasound, you may observe the gestational sac, fetal pole, heartbeat, and even the embryo, which develops in conjunction with the yolk sac.