In the past week Ds 5 years and an only, has been asking why he doesn't have a baby brother or sister. Yesterday he said it again 'I wish I had a sister to play with' my heart broke. How do I explain to him I can't have any more children. I know it gets lonely for him at times. I try very hard to fix play dates for him. This last two weeks I've found it hard as I've had to work 5 days instead of normal part-time 3 so his feeling are more acute. Any advice welcomed.