Reporting another bug: I have pregnancies disabled outright, via the menu *and* via the user_config file, but somehow the pregnancy related events are still firing off. One of my employees asked for a fertility treatment (which pushed hers from 34 to -100, but that's potentially a separate issue), and after banging the private investigator exactly once, the next time she saw me she told me she was pregnant and that it was mine - checking the console verified that the game believed she was and that I was the only potential father, despite setting it to zero.
To be clear, I tried using the ingame options menu alone originally, that failed previously so I just pasted "base_pregnancy float 0" (without the quotes) into my user_config and it somehow is still failing to actually be disabled. I am almost tempted to try setting the fertility decline and max pregnancy ages to something like 17 so *nobody* can get pregnant, since nobody should spawn at that age to begin with, but am hesitant that using a potentially invalid number might break things more.
I do know the user_config is working properly, because all the other settings in it are clearly working (girl pack girls show up, people are racist, etc).