The impact on the fetus of doing too much ultrasound in early pregnancy is minimal and will not affect fetal development, nor will it lead to malformations, do not take too long during ultrasound, if prolonged exposure will increase the chances of miscarriage and may have certain adverse effects on fetal development, there is no impact in a short period of time do not worry too much. Regular ultrasound examinations during pregnancy can exclude ectopic pregnancy and determine whether the development of the gestational sac is normal, and regular maternity examinations are needed in early pregnancy to determine the development of the fetus, and if the ultrasound examination is abnormal, abortion is needed in time. It is best to exercise properly during pregnancy to strengthen the body’s resistance and prevent colds during pregnancy, and to take reasonable folic acid supplements to prevent fetal neural tube development malformations.