Early pregnancy with yolk sac but no embryo

Early pregnancy see yolk sac no embryo may be due to pregnancy time too short fetal bud also appears, generally six to seven weeks of pregnancy when the fetal bud will appear. It is best to wait until six weeks of pregnancy when admitted to B-ultrasound examination, to ensure normal fetal development. Suggestions: early pregnancy should be supplemented with folic acid, to prevent fetal neural tube defects.