Low lying placenta/placenta previa

Li

At my anatomy scan I was told my placenta was about 2cm away from covering my cervix and they would continue to monitor it. I am 27w and have another ultrasound next week. My OB said they usually resolve on their own as your uterus expands and makes room. Just wanted to hear from those who experienced the same or ended up with placenta previa to know what to possibly expect.