Right now my piggies have one bent-grid hidey house (bent to make a tunnel, covered in fleece) and the corner of their cage has a one-grid roof with fleece curtains to make a corner hidey-house. Both of my girls are pregnant. Do I need to give them another hidey place? Or should the two they have right now be enough? They both love to be in the corner hidey, and also often use the tunnel hidey at the same time. Will they each want more privacy when it's time for birth, or should they be ok with the spaces they have?