I just looked at this again and realized you are playing with Dasan. It's not about her pregnancy like I thought, you have to watch her fuck Dasan. (Or maybe choose to allow her to or not.)
I guess that means just figuring out where she is every hour of the day (I'd start with 5pm when she is in Rumah) and figure out when she talks to Dasan.
For me the visit to Rumah quest finished at the point you are already at.
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I am further guessing that until you handle the Dasan quest directive, your Katherin's Pregnancy quest is paused / can't talk to her or Nyra until after Dasan bit is done.
(I deleted the first post where I gave you my save, I realized the autosave wasn't even my own playthrough, my save is still posted above.)