The 37-year-old reality star wrote, 'My precious baby is so strong! After spending three nights in the hospital and seeing my baby get multiple IV's and hooked up to oxygen machines, our end of year was challenging. Pneumonia is so scary.'
'I just want to thank every nurse & doctor out there who works so hard around the clock,' she added. 'We are so grateful for you all! He's home and better. He’s so resilient I’m sure he will still say the ambulance ride was cool!'
The couple also share four-year-old North West and are expecting their their third child via surrogate early this year.