Belly shape

Okay so I’m not sure how to even describe this but I’ll do my best.

With my first pregnancy I carried a lot of fluid and my belly was always really low.

Well this time, Im almost starting to think I don’t have enough fluid. I have an appointment next week so I’ll ask about it, but when I go to sit up I can literally see the outline of where my baby is laying. Like it suctions to her when I sit up. Is that normal? Just different from my first? Anyone else experience this? I’m 35 weeks today.