Hi guys,
hope you don't mind me popping in on my way past, but I just wanted to let folk know my experience that one bad SPD pregnancy doesn't necessarily lead to another.
I got SPD at 17 weeks with pg#1 and saw the physio a couple of times. She gave me the tubigrip and belt, which were like duracell batteries for me, letting me carry on for longer each day. But every movement was tentative and painful. I stopped going to the physio because I felt there wasn't much else she could do. But feeling like an invalid will remain with me for a long time.
The SPD remained 18 months after birth (I BF for 13 mths), and even then I got stiff walking on uneven ground and couldn't move an object sideways with my feet.
In between pgs I did Pilates. I started wearing earth shoeas. I saw an osteopath. I got a decent mattress with a memory foam top. I did anything I could think of to help.
My 2nd pg 2.3 years after dd1's birth heralded itself with the immediate onset of SPD symptoms before I'd even done the pg test - clicky hips, ligament pains, etc. I went to the osteopath as soon as he would see me at 13 weeks because things were worsening quickly, and wore my tubigrip in the meantime. I cannot say for sure which of the above things helped me or in combination, but the SPD never took hold. I would have bad days but would wake up the next day feeling better, which makes me think the mattress was a real help.
I don't know if any of that is of any use, but thought I'd share.