Hello everyone, girls, I have a question for women who gave birth befo…

Hello everyone, girls, I have a question for women who gave birth before 36 weeks, about the discharge that came with a lot of blood. Yesterday there was brown bloody discharge. There is an opening of 2 cm. A pad is not present today. Pain comes and goes. From home they sent me home, told me to come back with a midwife or after the water flows out. Has anyone encountered such a problem?