For anyone planning their return to work right now - what helped me massively my first week was that dh took week off to be with ds - it meant i could semi concentrate on work without panicking about him crying all day at nursery!
And just to reassure anyone who is feeling as dreadful as I did before I went back - I've just finishedmy 4th week back and, shock horror, I'm really enjoying having my adult identity back. DS wailed badly when dropped off at nursery (only two days a week) for the first two weeks but touch wood I got a smile and a wave this week.
Just thought it might help others to know it wasn't half as bad as the scenarios I tortured myself with for weeks on end. Good luck everyone!