Hello, a form of pregnancy is supported in the game (the offsprings are magical egg tho), available for monster girls (female fapets) and player (Nishy). Note: Player can only give birth to tentacle eggs because of story nuances.
You can check how it looks in the Game walkthrus above, here's with a bunny girl [01:10:27] : https://www.pornhub.com/view_video.php?viewkey=ph6398b32289678&utm_medium=embed&...
Cheers,
~NK