Well, assuming there are pregnant people in the afterlife, regardless of how they got there, would mean:

If a baby cannot be born there… lmao…

If a baby can be born there, then that means that wherever/whatever the afterlife is, it can self sustain.

If it can self sustain, it either grows bigger/more populous OR it isn’t the final destination, as it were. Both are hilarious to imagine. Never ending growth of immortals is fucking insane and makes a fun sci-fi (faith-fi?) thought experiment or story; not being the final destination is similarly fascinating, either would be fun late night campfire topics.