i recently saw a chiro for pain in my pelvis (which i believe is SPD) he did an adjustment, the pain went, but i was still uncomfortable and a little unstable on my feet. its been 4 days, and still no pain, but discomfort.
he basically said to me that while im pregnant, there isnt much chance of my adjustments lasting, so he only recommends one more until after ive had the bub. i dont know anything about acupuncture, but it wouldnt hurt to look into it!