Sorry to hear you're uncomfortable. I've been in constant pain since I was 7 months (I'm 37 weeks today). It's primarily focused in my lower pelvis and back.
However, I had this pain for a few days in my cycle for 3 years prior to getting pregnant. I was hoping pregnancy might "shift" some things and cure it, but to no avail.
Talk to your doctor frequently. Mine has allowed me to stay on vicodin (which I was taking before), as it's Tylenol-based and won't harm the baby. I'm sure there are women on here that would have MAJOR opinions about that, but I'm relying on my OBGYN and she's one of the best docs in our (major) city.
The baby's health is primary, of course, but your comfort comes in a close second.
Heating pads, baths, and yoga have helped me too. They don't cure anything by any means, but they help.