SSS MATERNITY BENEFIT

Will I be qualified for Maternity Benefit? Kasi sa 2020, ang contribution ko lang ay for the month of December, then 2021 is January lang. Balak ko mag voluntary kaso nalilito ako kung anong buwan sa 2021 ko dapat i apply ang aking contribution? Please enlighten me. Keep on calling SSS office but no answer from them, nag email na rin ako kaso wala. Due date ko December na. #pleasehelp #pregnancy