I thought when someone "goes to reproduce" it zooms in on them and shows they are about to, but I didnt see anything happen until whle i am looking around i see one of my people are preggers. HOW?!?

Whilst privacy is compomised in the Vault, they decide not to bang in front of you.

Their smiley faces behind the wall indicate sim-like whoopee...

Pregnancy follows...

But I thought it showed when they went back behind the wall but in this case that did not happen