Sympathies for SPD sufferers. I had it (fairly mildly by all accounts) in both my pgcies. It didn't affect my labours badly (not much fun in any case!), but I did find it really hard to do any exercise after babies were born - and I mean for a whole year afterwards, not just the first few weeks.
In my case, SPD just didn't go away, though it seemed to last longer when I b-fed longer with dd1. I am convinced breast-feeding kept my ligaments looser, though I had a really easy time with B-feeding apart from that.
I had pain in my pelvis and couldn't move freely for ages after each baby. Also I broke my ankle really badly after the first baby, which I put down to the very relaxed ligaments. My ankle just turned over and 'crack', I had to have a metal plate put in to mend it, hospitalised for a week and was on crutches for 6 weeks, not easy with a 4month old.
I also had two simultaneous trigger thums because of too much of that loosening hormone - not useful when trying to push a pram, do up a nappy etc.
It is much better now, (dd2 17 months) but I am still careful about twisting to get out of a car - and I still havn't yet attempted breast-stroke (which I used to do a lot) becasue my pelvis doesn't feel stable enough.
I know this experience was a doddle compared with many, but I was surprised how it didn't clear up after the baby was born and I got quite depressed about it after dd2.