This has 6 volumes and it's ongoing and we have yet to see the rest!! Crying https://www.mangaupdates.com/series/r7b2tfd/uchi-no-inu-ga-koneko-hiroimashita
Not rly sure of the details but it's omegaverse and the omega wants a kid but iirc the seme can't have them?? So the omega still wants to have a kid anyway and he did, and the seme loves the baby to pieces but the omega pretends he doesn't love the baby (probably due to fear/being sensitive since the seme isn't the father) but when the seme sleeps the cradles the baby lovingly <3
Kinda sounds like https://www.mangago.me/read-manga/love_is_an_illusion/
It's back!!!