Love the game so far, review with more details.
Won't be able to follow up on this for a few days, but it is possible to cause some actor duplication that is pretty game breaking, mostly dealing with iron tree. If you attempt to do pretty much anything with your Woodcatter after it is automatically assigned there during Lucey's quest, then some weird things happen.
1. Mine was chosen female, but attempting to breed brings up the top menu and shows male genitalia on the Woodcatter with female breasts.
2. Trying to return to the party returns "0" to the party but leaves the Woodcatter, also resetting the harvest ability for the one on the iron tree. There will be a duplicate one in the party now. This is fully repeatable up to 2 duplicates in party, but adding a 3 fails to load the inventory menu. With those two you can take them back to the farm, put in the fenced spots and interact with them. Trying to return them to a primer removes the duplicated actor without giving a primer. The bugginess continues to any offspring of the duplicated actors.
3. Trying to add more Woodcatters (obtained through random drop primers during later forest exploration) does not work and just removes the primer without actually giving another creature in the other two slots on the tree.
4. Also, I believe adding the Woodcatter automatically during Lucey's quest reset the progression of that Woodcatter, but I can't tell since I can't get it back to my party (except through the duplication bug which only gives fully reset actors).
As a result of this testing, I was able to get down to 0 stamina. When I tried going to sleep with 0 stamina, there were no menu options for the bed, so I couldn't sleep or progress the day. This seems like a strange bug, and though not recommended I did a saveedit to give myself 20 stamina and sleep (I don't think 20 is a magic number, it is just greater than 0).
Also, as other have mentioned I believe, the fact that pregnancy is not quite tied to a character is strange. I can take a pregnant cow out with me as a party member and they will be pregnant (menus, combat, etc) until the moment I return them to the barn, even if the same spot. The message says that harvest progress will be lost, but not pregnancy. As a player, there were no indicators that it had ben lost (actually ones that it had been kept such as the sprite continuity) and I saved over in-between saves that would have allowed recovery of the pregnancy. Not too much lost right now, but worth noting.
There is probably a lot of room for improvement. If fixing these things isn't a priority for your work right now, I'd suggest disabling some of this functionality to prevent messing up less exploratory player's experiences.
Overall though, enjoying my time and I'm excited to see where it goes! Good luck to your whole team!