I don't know if I have a back up after the time I added the the new households, but I do have an older back up I can add the same households in and test it in. I will try to do that and let you know. I will add a few more female pets to my households to give more chances to see as well.
Ok I am not sure if I have completely nailed everything down yet, but I have discovered one bug, that I know for sure is happening without any mods involved.
I have been testing with mods on, off and different mods installed trying to figure out just what is causing the pet pregnancy bug, and so far i all I can say is, I don't know. It has happened when I tried just having some LittleMsSams mods installed, and no others and it happened once with two families, then I couldn't replicate it again. I tried some other things and got it to happen with just Mccc installed, but only once with two families again.
Then I was testing with no mods and I didn't get any pregnancies, but I did get a bug that tends to happen to the households that get them, though it was only happening to dogs and not cats for some reason. They were aging, all the dogs were elders, but the cats were still adult, I don't remember if they have different lifespans if that's true, they might have all been aging. With the aging happening in my unplayed households then, the other bug might still happen without the mods, I just need to check some more.
Edit- forgot to mention I am doing this in a completely new save as well. I can test in a copy of the original without mods if you want me to.
No I have aging off for all my households, played and unplayed, the "other" group including towinies and homeless sims still age. I just went into edit household into cas and the had become elders. When I had first notice this problem with the pregnancies, I went in to play the households as well and they hadn't just had the puppies and kittens but everyone had been aging too. My unplayed households without pets or without pets that were having litters were still not aging.
The households I have that get the problem I add to world through manage worlds and then place them though the gallery. I haven't played them yet, but they are still mine and shouldn't be aging.
Edit- oh I could tell they were old from the pic of the household they were all slouchy and tired looking so I checked them in cas.
