kk pink book

Hi all.im confused.im 14 week pregnant and been following up with gynea at private clinic. He knws my problem for 2 years.im planning to give birth at his hosp.private hospital. Everyone around me keep saying go to KK and register and go two place.which is both kk and private. I feel stress focusing 2place plus.ist okay if i dont registered with KK. Thank lovely ladies.⚘?