Unless your child is a teenager, hugs are never too much. Teenagers tend to be touchy about being touched so handle a teenager with extra patience and care. After a divorce, children tend to be confused, angry, sad or sullen. Or, they may act unnaturally happy and smiley as if by ignoring the whole event they can just make it go away. Give your children time, listen to them carefully, answer their questions bit by bit without flooding them with too much information at once.
Kids have a way of knowing how much information they can handle at any given time.
Remember each child is unique and no two children will react to a divorce the same way. Watch, wait and listen to your particular child's needs. There is no right time for a divorce, but there are better and worse ways of parting that will leave more or less scarring. For the sake of your children, do your best. They deserve it.