Ay, congrats on being 8 months na! Honestly, mas safe kung mag-consult muna sa OB mo about origano habang buntis, kasi may certain herbs na hindi advisable during pregnancy even kung natural lang, better to be sure, no? A few of my mum friends swear by honey with warm water or lemon for cough, or ask their doctor about pregnancy-safe cough medicine na available sa drugstore. Hope your cough gets better soon, mama, yan talaga ang hassle towards the end ng pregnancy!