Hi, are there any safety guidelines / laws about using slings and carriers on public transport? We live in central London, so that's how we tend to get around, plus we live in a flat, so half the time I'd really like to leave the pram behind. Just wasn't sure if a sling is safe on a bus (I would not be going down the tube anyway).
Also - is upright position the best for a newborn (almost 4 weeks). I have a Close Parent Caboo, and am struggling with positions a bit!
Thanks a lot.