Clicking/popping in pelvis


Is it normal for my pelvis to click or pop whenever I move? I feel it in the hips and in the front crotch area, usually when I'm getting up from laying down, but happens when I walk or stand up too. And when I'm flat on my back, my tailbone area is in excruciating pain, and I can't get up without help.

I just want to know if I should ask my doctor about this or if it's normal. Even if it is normal, is there anything I can do to ease it a little? I'm 27 weeks if it matters.