Hey mama, yes may maternity benefits ang GSIS talaga pero honestly ang process is super confusing, a few of us tried claiming and it took months kaya better contact them directly or visit the nearest GSIS office para ma-guide ka properly sa requirements at docs you need. They should be able to explain kung covered ka fully or partially, and kung anong amount ang i-release, pero honestly talagang case-to-case ang dating, so it's best to ask them directly para sure ka. Good luck mama, fingers crossed na smooth ang process mo!