Maternity Benefits

Hello mommies, need your opinion po , ask ko lng is it allowed na Hindi ko ideclare na married na kmi n hubby before filing mat1 since kakakasal lng nmin wla pa kmi authenticated marriage contract and wala pko I'd using my hubby's last name . ( worried Kasi ako sa mga requirements to file . Hindi kopa din naupdate status ko sa Sss since kareresign ko lng possible kaya n mkpg claim ako ng maternity benefits ?Due kopo on Nov 21. Thank you po in advance ❤️ #FirstTimeMom