Hindi naman bawal mag-sewing machine habang buntis, basta comfortable ka lang at hindi ka napapagod ng sobra! Ang main concern lang talaga ay ang postura, sitting for long periods can strain your back, kaya maybe take breaks every hour o two, stretch lang, at make sure your chair supports your back well. As for mga bawal na gawain sa buntis, honestly it varies per trimester and sa bawat pregnancy, kaya better to ask your OB about what's safe for YOU specifically, bawat mama and baby different naman. In general lang, avoid heavy lifting, prolonged standing, activities na mataas ang risk of falling, at definitely skip anything na may exposure sa harmful chemicals or substances. Pero sewing? You're good, mama, just listen to your body!