There is no clinical statement that the rounder the gestational sac, the better the quality of the embryo. The gestational sac itself is round or oval, and if it is irregularly shaped, it is not normal. Pregnancy sac can be judged by early pregnancy ultrasound, most of the regular menstrual period in 28-30 days, and menopause 35 days of women, can be ultrasound in the uterine cavity to see the pregnancy sac, and in 6 weeks of pregnancy, the diameter of the pregnancy sac is about 2cm, 10 weeks of pregnancy is about 5cm, mainly in the form of a round or oval, show clear as normal. If the shape of the gestational sac is irregular and blurred, and the pregnant woman is also accompanied by abdominal pain and other uncomfortable symptoms, there is a risk of miscarriage. The shape of the gestational sac is not directly related to the treatment of the embryo, if you need to observe the embryo, you need to consult a doctor in a timely manner, ultrasound and other relevant examinations under the guidance of the doctor, generally empty gestational sacs, indicating that the embryo is not well developed, may be due to poor sperm quality, environmental and other factors. It is recommended that pregnant women strictly observe the gestational sac under the guidance of the doctor and reasonably judge the quality of the embryo, and take good care of themselves in a timely manner.