Sources tell them the 2-year-old was brought to an L.A. area hospital Thursday with pneumonia, and that his parents were with him while he remained hospitalized, sharing overnight duties.
Saint was discharged on Saturday, so he was checked in for just a couple days.
He's at home now, and sources say he's doing well.Kim shared a family photo from Christmas just a few daysbefore Saint was admitted.
Kim and Kanye shared a New Year's Eve kiss on Sunday, with both parents looking chipper and un-bothered.
The hospitalization also went down right after her mid-week meet-up with J Lo and A-Rod -- where Kim and co. enjoyeda taco Wednesday party.