Do Pink Book really necessary if I wish to deliver in private hospital?

Hi. it's not necessary to have the pink book if you wish to deliver at the private hospital. All you have to do is just go to the private hospital for at least 2-3times check up and inform the doctor there. They will give you their own version of pink book

To record your pregnancy condition n information. When your last period, the age of fetus and etc. Pink book is important