Why do I need a transvaginal ultrasound during early pregnancy?

Why do I need vaginal ultrasound during early pregnancy? 1.Vaginal ultrasound is significantly more frequent than abdominal ultrasound probe, and the images are clearer, especially for pregnant women with thick abdominal wall fat; 2.It is closer to the pelvic organs, which improves the diagnosis rate; 3.Yolk sac and germ are found about one week earlier than abdominal ultrasound; 4.No need to fill the bladder, which reduces the pain of holding urine and saves time for pregnant women. What are the benefits of ultrasound examination in early pregnancy? 1.Determine whether the pregnancy is intrauterine or ectopic; 2.Determine whether the embryo is alive or inevitably miscarried; 3.Determine the number of singleton or multiple fetuses, chorionic vesicles and amniotic sacs in multiple pregnancies; 4.Project a more accurate due date and NT screening in early pregnancy, etc. Can I have a vaginal ultrasound during early pregnancy with vaginal bleeding? 1.Vaginal ultrasound is feasible after sterilization if there is not much vaginal bleeding; 2.Vaginal ultrasound should be avoided if there is a lot of vaginal bleeding, unless it is difficult to clarify the abdominal ultrasound or ectopic pregnancy is suspected.