I saw a gif on tumblr, and was pretty sure I liked it, but when I went to my like it wasn't there! Now I cant find it anywhere. I'll try describing it to see if anyone knows it, although i'm sure it'll be a long shot.

It had a white heavily pregnant woman, with a large round bump. She was wearing a light purple tank, that was way too small and exposed from her belly button down. She had short denim jeans halfway down her thighs and when she pulled them up, her ass got in the way, lifting her cheeks. She then lifts them again over her ass and then the gif ends. She also very clearly has no underwear on. If this sounds familiar I would love to get the gif or original and maybe even more of this person. Thanks!

This isn't exactly your description, but it seemed closer to what you were looking for.