Alien Abduction/Mpreg stuff...?

I really wish the Alien Pregnancy/Mpreg stuff was opt-in. I'm getting so irritated, the same sim just got abducted twice and mpreg'd again and it's really making me want to just scrap this family. It's not what I want with this group and having to wait it out and then split/delete is becoming really, really irritating. ><

A toggle by household would be really nice, even if the default is 'on'.