Sakit gusi masa pregnant memang common, but kena careful sebab hormones kita naik, so gusi lebih sensitive dan prone to bleeding jugak, a few of my mum friends had the same issue. Try rinsing with warm salt water a few times a day, be gentle when brushing (pakai soft toothbrush), and make sure you're not skipping dental check-ups sebab pregnancy gingivitis boleh jadi serious kalau tak jaga. Tapi sebab you're already 27 weeks, better mention this to your doctor or dentist, okay, just to rule out anything else, they can give you safe options during pregnancy.