Weird situation..I love a lot of Christian names but...?

I'm Jewish, my fiance isn't but I am. I'm not SUPER religious I am very spiritual but never ever go to temple or anything like that, and just having a non denominational wedding. ANYWAY I love a lot of "Christian" names like Christine, Christina, Kristin, Noelle, like REALLY REALLY love them...so would it be bad if I used those name? I am guilty of celebrating Christmas with my fiance..(I've only had like 3 Christmases) and LOVE the holiday (not the religion or anythign). I'm pretty sure my family would get pissed...it's so frustrating when I love those names and feel like I can't use them. What would you do, and do you have any names you are not allowed to use cause of culture/religious purposes?