Here are some that I read:
Keeper of the Pearl
It's more about the the couple but the kids are still there.
http://www.mangago.zone/read-manga/keeper_of_the_pearl/
Deliverance of the Counterattack
WOWO IS SO CUTE
http://www.mangago.zone/read-manga/deliverance_of_the_counterattack/
Raising a Child and Falling in Love
Raised by uncles.
http://www.mangago.zone/read-manga/raising_a_child_and_falling_in_love/
We Only Held Hands
SO FLUFFY. You won't get disappointed because it's so cute.
http://www.mangago.zone/read-manga/we_only_held_hands/
Whose baby is it?
Definitely Good. It updates in batches.
http://www.mangago.zone/read-manga/whose_baby_is_it/
Hosik's Story
Kinda confusing at first and the plot is weird. Overall, the family is adorable.
http://www.mangago.zone/read-manga/hosik_s_story/
Egao no ura ni wa
Cute.
http://www.mangago.zone/read-manga/egao_no_ura_ni_wa/
Boku no Danna sama
Dog, cat, baby. plus fish
http://www.mangago.zone/read-manga/boku_no_danna_sama/
Gochisousama
idk tbh
http://www.mangago.zone/read-manga/gochisousama/
Kiraide Isasete
OF COURSE THIS IS HERE. CONSENT. PATIENCE. LOVE. UNDERSTANDING. ADORABLE
http://www.mangago.zone/read-manga/kiraide_isasete/
Papa no Sukinahito
Yes.
http://www.mangago.zone/read-manga/papa_no_sukinahito/
Gift (My Hero Academia DJ)
Just read it. It's good.
http://www.mangago.zone/read-manga/gift_boku_no_hero_academia_dj/
http://www.mangago.zone/read-manga/gift_2_boku_no_hero_academia_dj/
These are just the ones that I have read but if you want more, I found this list.
http://www.mangago.zone/home/mangalist/779724/
I know lot of manga about couple haveing a kid some how but frist time i read something like this and i think it's good plot some way