Thanks,
I'd rather find a way to prevent male pet pregancy globally, but that should work momentarily.
I do have quite a bit of mods, including script mods. Can't play without them!
@SimsCurrantI've looked for a bug report but can't find one for this issue. Have you tested it in a vanilla save, no mods? I'd maybe try that to see if it is mod related or not to get to the bottom of why it's happening.
Edit: asked for advice from players who also use mods and it does sound like that could be what's causing it. As I thought, it's not a feature of the game itself. So something is causing it to happen, possibly pet related mods including horse mods if any. I'm told it's doubtful that a mod is intending to have this result and most likely it's something that's broken and needs to be identified.
For now I attach a thread with some excellent advice about mod problems:
