1cm dilated at 30weeks?

I’m currently 30w5d, I had my midwives appointment yesterday and I was 1cm dilated. This is my second child, with my first I delivered full term but was in pre term labour from 26weeks on. I started to show some preterm labour signs with this pregnancy in the last few weeks (pink discharge, sharp pains/cramping, lower back pain and pressure). My midwife checked me and did multiple tests, I have to get ultrasounds done next week and another check up, she said his head is very low. I was just wondering if there is any other mommas out there with a similar experience and if they went to full term? Any input is greatly appreciated! I just want to be prepared for our little mans entrance into this world!☺️