Does anyone else’s belly change shapes when lying down

Naja • Rainbow baby🌈 4/19/21 🥺💗 I love you angel.

The first picture is my belly when sitting up and the second picture is my belly when I lay more back . Does anyone else’s belly change shapes ? Idk if you guys can tell but it shapes a little bit weird when I lay back . I know it’s probably not a cause for concern but I was just curious if anyone else has had this happen