Am so sorry about the pain, I really feel you. I had the same issue since I was 25weeks long there is really nothing you can do, but as for me all of a sadden by week 36 till 40 the pain was gone I just feel the pressure of the baby's head. Wish you the best.
In 27 weeks 3 days and I have pelvic pain too. I'm pretty sure my baby is head down as since when I hear the heart beat it's always down low. I go in a week and a half for an appointment I'll see if can tell me if my baby is or not