sending nude pics to my BF

I've never sent a nude before and I'm not sure if I'm ready to do so. Me and my BF are young adult. And I'm jus not sure if he's mature enough to keep my business private . I just feel like if I do get into sending picture and let's say down the line we break up ( things happen) that he might expose me. Should I jus suck it up and send him one. Or should I jus leave it be. 
We jus made 4 months together. 

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