Sayang, please go see your doctor or go to the hospital sekarang juga, especially dengan sakit pinggang dan bawah yang intense tu. Kat 35 minggu plus, any combo of discharge, back pain, dan lower belly pain kena check immediately, okay? Don't wait. Lendir memang boleh ada, but the pain pattern tu kena professional look-see. First time, semua macam-macam rasa, tapi jangan self-diagnose. Better safe than sorry when you're this far along! Take care of yourself, sis.