I’d leave it a couple of weeks and tell him, say its something you have wanted for a long time now and its been booked since before you met him. Im sure he’ll understand your doing it for you! My boyfriend of 5 years didn’t really want me to get it done, but nothing was stopping me and im sure when they get better and softer he will be happy! Its so common these days im sure he wont be against it unless he’s very old fashioned – even then if he likes you enough im sure he will come round to the idea xxx