My husband and I are very keen to have a third child and the only thing that is holding me back is space. We live in a 3 bed house and currently dd1 (age 5) and dd2 (age 2)have their own rooms and all works well. If we had another baby dd1 and dd2 would have to share a bedroom - and all rooms are on the small side. We have the potential to build an extension to give us a fourth bedroom but unfortunately I cannot imagine a time when we will have the funds available to actually build it. I would be grateful for any advice on siblings sharing and whether it would be okay as they get older if we cannot build the extension. Would I be too selfish to go ahead and try for a third and not put the needs of the two children I already have first?