Yeah the current pregnancy system doesnt save progress, only that you are pregnant, which is probably why it breaks. Have re-written it in next version to save progress as well.
Interesting with the potions turning into rotten meat :D
Found another big one. I swear I'm not breaking the game on purpose... mostly :P
-- Going into the dungeon full of demons and coming back out again reset the entire world. Meaning any and all changes the player did to it were removed. Like, say, building a 2-story house and filling it with stuff...... But possibly even more serious, all the waypoints and places of interest had to be discovered again, and all of them rewarded me with even more skill points and exp. A massive exploit just waiting to happen. heh
Seems pretty consistent. 4 out of 4 times I went in there, the world reset. Twice with every waypoint and location discovered, once with most of them, and once with only a few. Just to see if discovering a specific place had anything to do with it.
Update: I discovered waypoints will similarly do a world reset, just a lite one. Time of day becomes morning, even if it had just turned dusk, and harvested plants and iron deposits come back. (This also breaks pregnancies .__. )
Since the dungeon door resets everything not directly tied to you (inventory, etc.), even making the initial help (H) screen pop up again, my theory is that it's simply set to load the wrong world state.