I've had SPD since about 20 weeks, and I'm a former ballet dancer with great core strength and flexibility (pilates was invented as rehab for ballet dancers). And I still have the pain and problem (can't walk to the park). I've got a brace for when I want to do something energetic like walk around my area or do some gardening - this makes a world of difference. Avoiding the aggravating factors also makes a huge difference - symmetrical stress on the pelvis is much more comfortable than asymmetrical stress. For example, I can easily sit with the soles of my feet together and knees touching the floor (symmetrical) but my experience driving a shopping trolley last week sent me to the couch with panadol for half a day!!! I also find that if I'm doing somehting and it is giving me trouble, if I concentrate on doing a co-contraction (part of pilates) of my deep abs and a couple of other muscles to hold my pelvis steady, then this also helps.

On the positive side, my Dr thinks it is a good thing as it shows the pelvis will be able to easily move during labour - therefore improving the pelvic outlet size and hopefully reducing any need for intervention. Good to know there is a positive side!!!