Hello Mum! The question is: when does the doctor say how a woman will …

Hello Mum! The question is: when does the doctor say how a woman will give birth? That is, independently or through caesarean section. For this, do you need some additional tests, research? After all, they should see if there are any contraindications for one or another method of childbirth) No doctor has raised this topic at any appointment) I want to give birth on my own! Tests, Praise God, everything is in order!