If you can't see a rhuemy any earlier, perhaps you can talk to your GYN and see if you can see a high-risk GYN quickly? If you are in that much pain your symptoms need to be, and can be, treated even without a diagnosis - but it's definitely important to make sure your treatment is safe for the baby.
The rheumy is really the dr to be determine which auto-immune disease you have - they overlap significantly and there is not a single test which determines MTCD or Lupus or other auto-immune illness.
Try not to worry, just take care of yourself and stay calm and do the next right thing.
Lynnwood, Lupus & Sjogren's ModeratorDIAGNOSING-LUPUS & LUPUS-RESOURCES
"Life is far too important to be taken seriously" - Oscar Wilde