It is normal for a pregnancy to suggest that the ultrasound is larger than the actual gestational week. When there is an early menstrual cycle, a shorter menstrual cycle may cause the fetus to develop better and can cause the ultrasound to be larger than the actual gestational week. For example, when there is early implantation, some women will ovulate 3-5 days after the end of their menstrual cycle, which will also cause the fetus to develop well and cause the ultrasound to be larger than the actual gestational week. There are even some women who have good nutritional status throughout the pregnancy cycle, resulting in good fetal development and a larger ultrasound than the actual gestational week, which is normal and does not indicate an abnormality. It is normal and does not indicate an abnormality. You can determine the actual due date according to your own situation and pay attention to the various examinations in the second trimester.