cap is mostly how many beds you see around the girl/house
also the power of vampires is made to make that life easyer, but need some progress to get it.
but dont think tinkerer had the plan to keep very girl
spending time to go to the kids bed areas just to check how many kids you currently have and then checking if she is pregnant manually is a waste of time that the player is going to mitigate via saving, checking, then loading before they checked. making the players life a little easier via a ledger is a good QOL change for the game
the biggest issue i had was knowing when they would get angry not preventing them from getting angry. the partial vampirism is useful and it has its own tracker built in. id like somthing similar for women management