3rd pregnancy with previous 2 1st trimster miscarriages

Hi

This is my third pregnancy and with prevoius two i miscarried at 5,8 week one was empty sac and other heartbeat stopped at8 week. In these pregnancies i start spotting brown and i naturally miscarried now in this third pregnancy i am again spotting brown. I don’t know why i start spotting is it due to cervical incompetence? Also in my first ultrasound doctor found uterine septum but she said its very small.

Anyone experience the same things and have healthy pregnancy? Please pray for me