
Had to go through my list for this:
I surge towards you
Kozure Omega to Boukun Yakuza
Dragon making love (It started off rough it was for the sake of character development)
Gorani Jeon (not too sure about this one, it was from a while ago)
You Who Wants to Love
Arima-san wa omega ni naritai
Arrogant otto the 1st (not complete, and updates like shit, but it is good)

https://www.mangago.zone/read-manga/ookami_sama_no_ichizu_na_bouai/
Will always recommend this one for good mpreg. Devoted wolf hubby. And they actually show the whole pregnancy starting from they studying and preparing for it until he gave birth. Chef's kiss.
Sigh why can't I find any good mpreg stuff with a healthy relationship?