Can the shape and size of the gestational sac determine if it's a boy or a girl?

Patient's question:

No

Doctor's answer:

Hello, the gestational sac cannot be detected through an examination. You can have an ultrasound examination at 4 months of pregnancy. However, the country now prohibits gender identification, and it is best to let nature take its course—boys and girls are equally valuable. Currently, the focus should be on increasing comprehensive nutrition, maintaining a good mood, eating a balanced diet, consuming more fruits and vegetables, and combining coarse and fine grains to ensure a peaceful pregnancy.