I'm not sure if this is normal or not, but I've had Pets installed for 4-5 months now, and not once have I gotten a phone call that an animal had babies and if I wanted to adopt one.
I'm wondering if this only triggered if you're Friends with a Sim and if that Sim has a pet. To me, this makes sense. But, don't know. Could someone tell me?
I am using StoryProgression, and wondering if this could be messing with the mechanic that allows this to happen.