There's a guy that draw A LOT of niji girls being pregnant
https://exhentai.org/g/3477937/5bba2cd96c/?p=10
https://www.pixiv.net/en/users/12115395/
He even drew my latina wife being super cute! she won't be that skinny when pregnant with our child
https://www.pixiv.net/en/artworks/133167053