I had it with my first, it went away after delivery. Shrugged off by my OB at the time.
With my second it started earlier, and my midwife kind of blew it off, too, so I started seeing a chiropractor who focused on pregnancy and children. Got worse, and I separated my pelvis during his birth. Took me over two days to convince the nurses and midwife that a "10" didn't adequately explain my pain, and that there was something else going on. A year of excruciating pain followed (I couldn't find the right provider to help me, honestly), and then I found the right physical therapist who spent another year putting me back together again.
With the twins (who I carried to 37w5d and were 7lbs and 7lbs 3oz, so a LOT of baby), I had some minor discomfort but nothing like the first two. I did wear a belly band almost all the time because I found it provided a lot of additional support. It wasn't one of the expensive bands, just some tubes of stretchy fabric that I got off of ebay. I did see a chiropractor towards the end of the pregnancy to try to get baby A to flip and actually found that my pubic symphysis hurt more right after each adjustment.
I honestly think that the chiropractor may have made the issue worse during my second pregnancy. If you aren't seeing improvement, you might want to reconsider the continued adjustments.
Single mom to
DS ("twice exceptional") - September 2002
DS - February 2006
DD - July 2009
DD - July 2009