It's been two months and Tomioka isn't showing yet so he can still go out and slay demons he just has to be careful not to get too injured so he doesn't have a miscarriage. Kanroji checks up on him every day to make sure he's doing ok.
Of course Master Ubuyashiki was informed about Tomioka he took it very calmly and told Tomioka he could take a break whenever needed.
None of the hashira except Kanroji have any suspicion or know about the pregnancy of Tomioka.
He had recently met Tanjiro and Nezuko
Although Nezuko gave him a scare when she kicked him in his stomach.
He takes a two week break every month he can take longer breaks if asked or needed.
Urokodaki was informed about the incident and his pregnancy Urokodaki took it well.
Anyway sorry this is short but I just needed to make sure I post more updates.