I have RA, and I went off pain medication during pregnancy too.
AND of course, once I wasn't pregnant anymore, all my symptoms came back with a vengeance within six weeks.
I went to a new doctor and he prescribed me Low Dose Naltrexone. I can't believe I hadn't heard of it before - safe to take while nursing, super cheap, and it works way, way better than anything else I tried.
My mother has fibro and I made her try it as well - she is 90% recovered, after...