I had it with my last pregnancy, and unfortunately it didnt fix itself, but it tried! Ended up only having a few big veins (or whatever) of placenta just about reaching the cervix, so enough to be a pain and need a c-section.

My doctor was very vague about it too, he wasnt worried until i was 33 weeks and told him i lived 4 hours away from the hospital and that i was coming to perth to stay from 36 weeks onwards. He then told me i was at high risk of hemoraging so i needed to keep my butt in perth.

I'm anxiously waiting my 20 week ultrasound this time around! I'm praying its not low, i havent had any spotting so i'm hoping its a good sign. I'm hoping i can have a VBAC.

Good luck