Nude pictures

I've been dating my boyfriend for about 11 months. Since it's Christmas break and we aren't together, he gets really excited if I send him a picture. I never send full body and it's always without my face and through Snapchat. I trust and love him, even if I don't know we'll be together forever. I know everyone can make their own choices and shouldn't be judged by anyone for what they want to do, but do you guys think this is stupid of me? I've always been so engrained never to send a nude picture that I always second guess it, even through I 100% want to. I just feel like I'm doing something wrong.