I quite like this one. It's clearly a "demo version," with limited opportunity for advancement, but if the dev chooses to continue this into a full-fledged game, I could see it being quite enjoyable. I do think there should be a third belly size even at these levels; it seems a bit weird that the belly goes from technically pregnant to "could drop at any moment" in one go, and that the next level carries no increase in size. Perhaps make the second level more like a second semester size, and figure out an appropriate in-game mechanic besides birth for losing endurance, or leave level 2 as-is and create an "overdue" size for level 3? I'm also guessing that level advancement and rewards will be clearer in an updated version? At any rate, I think this is one of the more enjoyable games in the jam, and I look forward to a full version down the line.