Pelvic popping?

Nickie

So I'm 31 weeks. Baby girl has been kicking me in my pelvic area she hasn't been kicking up in my ribs anymore mainly in my lower stomach. Since I was 29 weeks Everytime she kicks me down there I feel like I can hear my pelvic bone pop. I def hear a popping sound when she kicks me down there and since I was 28 weeks it's been super painful down there everytime she kicks or stretches way down there and I feel it in my butt. I literally feel my butt move every now and then lol she is super low but also high?! Idk I think she is long or something I have an ultrasound on the 23rd to check her growth. But anyone else experience this? I can't sleep at night anymore unless I drink a whole bottle of cold water. I toss and turn all night long barely getting any sleep. Never comfortable in one position for to long. It's just so painful now for everything. Not to mention I've been experiencing Braxton Hicks and real contraction since week 27. Tell me I'm not alone 😥😪