Alah, lendir putih jernih tu memang boleh jadi signs of labour coming soon, especially since dah 39w5d, tapi tunggu lagi sikit, kadang-kadang lepas discharge lendir tu boleh ambil masa few days lagi before actual labour! A few of my mum friends experience the same thing and satu dua hari je baru kena, so setiap orang lain. Best lah you check with your doctor or midwife asap, sebab dia boleh scan tengok if cervix dah start dilate or not, at least you'll know what to expect kan. Meanwhile, make sure you rest, makan well, dan keep track of your contractions or any other changes, okay mama!