From my point of view, it doesn't even deserve a 16. I'd give it a 12 at the most because it's not a kink game.
I prefer to give it an 18 to avoid any problems. This game took the theme of motherhood in the literal sense. Not just the fact of having a belly full of babies.
The next version will follow this same principle. For me, motherhood is there to create beautiful stories. Not kinks games.