It feels like I'm putting fitting something togethee. It's quiet a weird feeling to describe. My cervix felt bruised before this happened and someone said its him moving his head down. Have mw again on Wednesday unless I have given birth by then so we shall see. Just want him here now.
I also feel the popping, I asked my doctor and she said it was normal baby is moving down toward your cervix and also feel like bubbles passing down.
I have been having the same sensation but I was told that it was the baby's ligaments and joints popping, although I am not sure if this is exactly what you are describing.