3D ultrasound needs to be pregnant before it can be checked?

Patient's question:

No

Doctor's answer:

Hello, weeks 13 to 27 are considered the second trimester of pregnancy. The examination includes: checking the fetal position, amniotic fluid, placenta, and umbilical cord to identify any abnormalities such as cord, breech presentation, cord prolapse, or cord tumors. It also involves checking for placenta previa, the location of the placenta previa, and early placental separation, as well as cervical insufficiency.