Thanks to both of you for your replies. I will leave my pregnant girl in with the others, then, unless I find there are any problems. I am wondering, greenbeast, if you mean that the little ones get squashed, bullied or eaten by the adults? I only have the three sows and a boar together and there is plenty of space for them, so I will maybe put up some more arks in the far corners so that when she farrows, it might be farther away from the others until the piglets are big enough. I could always temporarily fence off an area also, so thanks for sharing your experiences.