Omegaverse yaoi manga where uke gets pregnant and then gives birth to a cute baby like Suk...

http://www.mangago.zone/read-manga/romantic_joutou/

Sadly I don't recall any manga's with the child being shown but heres some recommendations for mpreg and omegaverse mangas

http://www.mangago.zone/read-manga/harami_bara/
http://www.mangago.zone/read-manga/ao_no_futsumashi_dj_hakoniwa_yuugi/
http://www.mangago.zone/read-manga/sayonara_alpha/
https://myreadingmanga.info/maine-unap-control-attack-titan-dj-eng/
http://www.mangago.zone/read-manga/bokura_ga_tsugai_ni_naru_made/
http://www.mangago.zone/read-manga/shingeki_no_kyojin_dj_fan_service_omegaverse/

http://www.mangago.zone/read-manga/mauri_to_ryuu/

I honestly can't think of anything else
http://www.mangago.zone/read-manga/tadaima_okaeri/

Love is an illusion(▰˘◡˘▰)

I'll give you a link maybe you'll find something similar to the manga you want.
http://www.mangago.zone/home/mangalist/909603/

There are a lot of uke getting pregnant in that link.