Sayang, at 37 weeks tu memang boleh ada Braxton Hicks (perut mengeras), tapi kalau ada keluar lendir berwarna kuning dan frequent, please see your doctor or go to the hospital today to get checked , better safe than sorry, okay? This could be normal discharge or something that needs a quick check, so jangan delay. A few of us mum friends pun selalu nervous dekat final weeks, totally valid! Let your gynae assess you properly, esp since you're so close to due date already. Take care, and update us once you see the doctor!