Basically where the mc gets teleported to a different dimension where a dragon guy is there and wants to get married to him. Idek if i remember it right but they had a baby towards the end
https://www.mangago.me/read-manga/i_was_reborn_as_his_highness_the_prince_s_little_evil_dragon_shonen_ai/
this one? sorry if not ( ̄∇ ̄")
The art improvement was so satisfying (⌒▽⌒)