Aduh, 38 minggu 6 hari dah so close to due date, mama! Lendir yang keluar tu memang boleh jadi sign labour coming soon, tapi since you're not sure whether it's the mucus plug or just extra discharge, better you go to the hospital jadi dapat check dengan doctor, they'll do a swab and confirm whether everything is okay or if you're starting to dilate. Braxton Hicks (false contractions) tu normal, tapi combine dengan lendir macam tu, safer to get it checked out rather than risk anything. A few of my mum friends went in at similar stage and alhamdulillah semuanya fine, tapi betul-betul helpful for peace of mind. Go la, hospital will ease your worries!