He's Expecting
Manga
He's Expecting, also known as Kentaro Hiyama's First Pregnancy , is a Japanese manga series written and illustrated by Eri Sakai. It is set in a world where males are able to become pregnant; the story follows Kentaro Hiyama, an elite ad salaryman who discovers he is pregnant. Kentaro Hiyama's First Pregnancy was serialized in Kodansha's bimonthly Be Love Magazine from August 2012 to November 2012 and was collected into a single tankōbon volume.
Description from Wikipedia, available under CC BY-SA 4.0. May be shortened.