I’m replying on behalf of the dev, since he’s currently away.
I worked on the project for a while, so I have a good idea of what’s planned: pregnancy isn’t part of the current content.
The dev isn’t really into that fetish, and we’re also not completely sure what players expect — whether they’re asking for the fetish itself (sex with pregnant women) or something deeper, like the idea of having a child within the story.
Since we don’t have much affinity or experience with that type of content, we prefer not to include something that could end up poorly implemented in the narrative.