I was just wondering, if Kan see's Yuna naked while checking on her, does he watch longer or does it just play a special animation?
I'm not the one pulling the steings so I can't promise anything, besides, dev hasn't said anything about endings nor pregnancy more than that
All in all there's too little info regarding this matter, for now we can only assume things, like condoms could prevent pregnancy or maybe he will add some other contraceptives
I'll try to mention that if the time comes to it
Cheers