What is the total no of polar bodies formed during oogenesisin the ovum

There is Meiotic divisions in germ cells when ovary produced 4 cells 3 becomes undifferentiated becomes polar bodies they will not become ovum one will differentiate again in meiosis II and then the chromosomes number will become half then this formed 3 polar bodie

If fertilisation occurs then their are 2 polar bodies whereas in case fertilisation doesnot occur only 1 polar body is formed