If you normally get a card, then do so...but nothing really mushing or sentimental. Leave it on the counter and if he gets you a card, great. If the doesn't, at least you've remembered your special day. No expectations if you do leave one for him to read. Okay?
Keep the focus on you and your son. A watched pot never boils.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
