aaaahh the moving house syndrome - lol
Some mothers tend to like moving their babies after a few days. When my queen Zoe did this, I was new to breeding too. If you change her bedding and make sure she knows she is safe where you have placed her, that it is reasonably quiet (vacuuming and washing machine excluded) no through traffic, passers by kept to a minimum for the time being - the time will come when they will mix with everyone, when they are more mobile. Just give your queen lots of reassurance and check that she is not showing you something about a particular kitten. If they all look well, are suckling and the queen is healthy, then just pop the baby back in the nest with the others. Its surprising how well babies cope with being carried by a rather "rough" mum.