I bought a lovely Storcenwiege sling for my bub, who is nearly 2 wks old, now. But I haven't used it yet, because when the paediatrician did his assessment before leaving hospital, she said she felt a slight click in one of his hips which would need to be scanned to rule out any real problems. She said it was "probably nothing, just like when you crack a knuckle" but he'd get a scan appointment in the next few weeks. Do I need to keep him out of his sling until after this is checked out, or would carrying him in the sling not affect this? If I can use the sling, are there any positions I should avoid putting him in? Thanks.