Omegaverse

There is one! http://www.mangago.me/read-manga/love_is_an_illusion/

There is a Yuri on Ice dj that shows non-explicitly the birth.

http://www.mangago.me/read-manga/yuri_on_ice_dj_love_x_ree_x_baby/

It's really adorable

Actually there are quite a few.. But I don't really remember the title.. But the one that famous those days is the love is an illusion and the tadaima sth

I've read (saw the raws) of one, a teenage boy who gets pregnant and gives birth on his bed all by himself. I can't remember where I saw it, it was a year or two ago.

not omegaverse
baby bump
https://myreadingmanga.info/mujina-tamaki-fakkyuu-tsunage-orc-no-idenshi-haikyuu-dj-eng/
https://myreadingmanga.info/goma-saba-natsuo-monaka-ikenie-wa-ninpu-sacrifice-pregnant-man-eng/
https://myreadingmanga.info/ma2-mxsxe-messiah-eng/

gave birth
https://myreadingmanga.info/madobuchiya-nishin-chikuhyou-no-hanayome-orc-bride-eng/
https://myreadingmanga.info/tagame-gengoroh-kureta-meushi-english/
https://myreadingmanga.info/sakusaku-kangen-noushuku-shota-ninshin-shota-pregnancy-eng/
https://myreadingmanga.info/flash-point-aoi-takayuki-p-boy-eng/

This is not translated but it's cute, has pregnancy, a possessive seme, a adorable baby, and sex scenes.
https://toonkor.site/%ED%98%B8%EC%8B%9D%EC%9D%B4-%EC%9D%B4%EC%95%BC%EA%B8%B0

WTF WAS THE ONE WITH THE DUDE WHO GOT HIS LEG CUT OFF AOFNKDJD