IT DEPENDS. If the birth certificate is still in the custody of the LOCAL CIVIL REGISTRAR, it is possible that you may retrieve the same to change the entries thereof. Anyway, the law favors that so that the child's lineage and filiation is properly established. However, if the birthcertificate is already forwarded to the CIVIL REGISTRAR GENERAL in PSA, it is no longer possible to retrieve the same otherwise mag dodouble entries na. Your remedy is for your hubby to file a SPECIAL PROCEEDING on RTC for Correction of Entries In the Birth Certificate on the ground that he personally acknowledged paternity
Ask niyo po sa PSA. Kasi kung nakapagpasa na kayo baka naprocess na yun. Need niyo nalang pa-amend.