The long strip shape of the gestational sac only represents the shape of the gestational sac in the early stages of pregnancy, and the growth of the embryo is judged based on the size described in the ultrasound. Many people will judge the sex of the fetus based on the size and shape of the gestational sac has no medical basis. Ultrasound is a correct and reliable way to diagnose early intrauterine pregnancy in the early stages of pregnancy. When the pregnancy is about 5 weeks while holding enough urine, it is possible to be able to see the gestational ring with a liquid dark area and possibly cardiovascular pulsations. This is the earliest way to rule out an ectopic pregnancy. As soon as you see the gestational sac either long or round, and see the cardiovascular pulsations, it means that the baby is developing. When you go back to the hospital for an ultrasound around 8 weeks of pregnancy, the cardiovascular pulsations of the fetus are more visible. The third month of pregnancy is the best time for an NT test, which examines the fetal nuchal translucency to make an initial diagnosis of the chances of having a Down’s syndrome fetus. Be sure to have regular labor and delivery checkups and do all of the mid-pregnancy screening tests.