24 is my lmp date and my edd is 31 oct then what is my delivery date

A. She was saying your estimated delivery dated 31st October so how can I confirm your delivery date just by doing 24th is your last period so I don’t know what month I’m not going it’s not possible for me to calculate backwards anyways so it would be good for you to work with 31st October as a doctor has given that and nobody can give you confirmation of for a confirmed date to be delivered it’s only estimated