No, Observer wrote a character you can impregnate and get impregnated by. For a fun activity, find all characters in the game you can impregnate and take a look at who they were written by. spoilers, its never Savin
I was going to say its always Observer but I think there might have been one during mayternity that wasn't.
The new tanuki witch is mostly Wsan, I think (or at least he seemed to mention working on her the most). There should be a good bit of preg content for those who think it's a good idea to get knocked up/knock up all your companions while on a journey to save the world but it won't be from Savin, that's for sure.
I actually haven't been into any Savin content lately; he's always had that whole casual degradation thing going but lately it feels like he's been leaning -really- hard into that along with bimbo cow stuff, something I've never been particularly into. I'm not a huge fan of The Observer, either, he desperately needs to find himself an editor he trusts. Most of his scenes, especially with the wolf family, will have them awkwardly summing up their situations at each other in ways that don't at all sound like dialogue or going off on long lore rants to the detriment of the scene's pacing. It's also slightly annoying that he'll write PC dialogue as prose. Quirks are one thing but something like that should be standardized.
Wsan's actually been putting out the best stuff for CoC2 and that surprised me. I wasn't a huge fan of his TiTS writing but all of his CoC2 stuff has been top shelf.