I'm confused they have 2 babies ?
Yes, they have a son and a daughter, Hina. I haven't watched the anime but I'm assuming since it's a new release and still in season 1, Hina hasn't been born yet
Theres another manga that focuses a bit mode on Hinas (their daughters) birth: Tadaima, Okaeri Kagayaku Hibi
I'm confused they have 2 babies ?