Hello. To see the requirements for issuance of birth certificate, please click on this link: https://psa.gov.ph/civilregistration/requesting-civil-registry-document/birth-certificate For your legitimacy question, your child is illegitimate since you and the father are not legally married. Please refer to this link for a short discussion on the topic of legitimacy: https://psa.gov.ph/civilregistration/legitimation
photo copy ng id ni daddy nya at syempre present po sya once na nanganak ka po, kac may ppirmahan syang affidavit na dadalhin nya apilyedo ni daddy nya.,