reaper sans

(your geno and in this story your a girl but if you don't want that you can change back to a girl but idk how) about reaper sans: he loves geno and will protect him with all his heart also can kill anyone if he touchs them but cant kill geno because he's half dead but he wont turn to dust (if I missed anything tell me please) story:reaper keeps trying to have a kid with you because he really wants to you live together you wake up befor him and walks into the bathroom getting ready for the day and you take a pregnat test(don't know what their called) and it shows positive how will you tell him?