Hay first time mom jitters, yan talaga! Honestly, maternity voluntary contribution rules are tricky kasi different ang bawat SSS case, so super recommend mo talaga na tawagan mo directly ang SSS hotline or mag-visit sa nearest branch para ma-clarify mo kung pwede pa mag-catch up after giving birth, mas peace of mind ka talaga kapag direkta mo silang narinig. Ang alam ko lang from my circle of mum friends is na dapat tuloy-tuloy ang hulog if gusto mo maging eligible, pero since lampas ka na sa due date at may CS ka pa, baka may special considerations for you na kailangan i-check with them mismo para hindi ka ma-stress pa lalo with deadlines at everything.