Pain in very low back and it pops!

Brittany • Mama of a beautiful baby girl and another lil babe on the way💕

I get this sharp pain walking and getting up out of bed in my bottom left side of my hip? Back of pevis? Idek how to explain the area all I know is it’s a bone there. It pops loudly constantly especially every time I get up out of bed or off couch! What could it be anyone have this also?