I had very bad SPD, on crutches last few weeks. I actually did have legs in stirrups it hurt initially but it soon got better....the feeling of a head moving out of your foof soon takes your mind off your hips! Also I was pre warned that I may have to still use crutches afterwards....nope, I am super fine (as fine as you can be after birth). Talk to your midwives and take things slowly, mine were great with me.