I'm looking for manga about married couple dealing with pregnancy. Spotted Flower is a perfect example for what I want.

no NTR
no Hentai but I do not mind mild sex/nudity
no yaoi
no yuri

I really appreciate it if you can recommend me some manga like this 😀

Later on in Danna ga Nani o Itte Iru ka Wakaranai Ken the wife gets pregnant.

There is also Boku no Shoukibo na Seikatsu

Ufu Ufu Fuufu is not exactly what you are looking for as the woman is no longer pregnant, but it still might fit remotely.

I'm afraid most of this is untranslated. There might have been one more series, but I forgot the name.

Kounodori(8/10 for now) has a lot of these.

I also read EU/US comics and am a librarian.
Manga-Masters, My ANN-Lists + Imdb

Akkan Baby perhaps?

Webtoons, Manga, Manhwa!