Hello I am 29 of years old weight 66 kgs height 5'5".i am a teacher by profession, I was pregnant for 18 weeks. I had a hectic schedule cosequetive 6 classes in my school. Later I found some water like discharge. I thought it is normal .it increased with time. Next morning I found some bleed. I went to a radiologist for usg. It showed internal os open. Cervical length less-than 2 cms. Irregular heartbeat of fetus. I went to the doctor, after examining physically. He said nothing could be done and needs to be aborted. Labour was induced by injection later d&c my question is this can physical stress (standing for a longer duration, riding bike etc) cause preterm labour before 20 weeks? I was having vaginal discharge a thick white discharge before this incident .was it a warning for a infection? If my cervical length after breaking water is less than 2 cm will it effect my future pregnancy? What are my chances to have a full term delivery after this incident? Without cervical cartilage?