DD2 is 3 months old. My hip started hurting when I was pregnant with her, and I hoped it would be one of those things that would disappear when I gave birth, but it's still happening. It only hurts when I lie on my side (either side) in bed.
I think the hormones that loosen up your joints in pregnancy hang around for a while afterwards, but for how long? And is that likely to be what's wrong?