DD is 4 weeks old and in the past week her nappy has leaked every time we've used the Moby. I'm not sure why - not leaking in any other circumstances. I have tried newborn hug hold and kangaroo hold and it happened with both. Has anyone else had this? Help me! I've got a bigger kid and need to be able to get out and about. Have an Ergo sling and can't wait til that kicks in but LO is still too young.