my friend has one daughter, she's 11 now. she and her partner were always adament they would have only 1 child. but on holiday this year her daughter said to her " mum I wish I could have had a sister or brother". my friend is really upset over this, she feels she's denied her child something very special, esp. as she's close to her own siblings. I can't say much to help her as I've got 2 and I'm so glad we had ds2 as they get on great and are very close.
just feel really sorry for friend (and her dd)