Yes, that's correct. Additionally, children can also "arrive" when the image of the Output "arrives" in the Luck Pillar.

For example, Kim Kardashian
Y M D H
Geng Bing
Ding Yi
Shen Xu Mao Si
LP Ren Wu (2014-2024)
She gave birth to three children during this LP, but there is no Output in the Luck Pillar. Ren is Officer and Wu is Parallel/Lu. How come?
Here is the reasoning:
- Xu as Output "arrives" as Wu Horse, because
Xu swaps images with Wu- Xu combines with Wu as Lu, and Lu represents her body. This is an image of the body combining with Child Output, or she carries the fetus in the womb.