I wouldn't call if I were you. Wait, let him have his time and space. You can call a week from now and say something nice like "I've been thinking about you and I had this impulse to call you and hear your voice". You'll be able to pick it upfrom there
But right now, let him see how it's like without you. Chances are if he's confused he won't have an answer today or tomorrow or the day after that. But should he miss you... you may still be able to make it work.
So: "Patience, my love!"