Sergeant at Arms
+1Also in terms of making children, why not make it so if your wife/husband is at your keep you can have a dialogue option like "Lets spend the night together", and if she/he has a positive opinion of you it will happen. Then it will go to the world map and time will pass until the next morning. Then after a few weeks there's a chance a message will pop up saying if your wife (or you if you're playing as female) is pregnant.
Not only is it an easy way for the player to control how many children they want, but it's also way more immersive than pregnancy happening while you're at different places.