Waddling at 13 weeks

So I have an old hip injury from high school. I took a nasty fall horseback riding and was in a wheelchair for a little over a month. My hip has given me trouble ever since. However, now that I'm pregnant, I'm definitely noticing a lot more discomfort in that particular hip. Both hips hurt, but that one more so than the other.

I've been getting the kind of pinched nerve feeling in my lower back that causes discomfort in my hips and upper legs. So much so, that apparently, according to my husband, I've already started to waddle slightly when ive been walking or sitting a while. Is this normal so early on?