My boyfriend doesn't post me on Social Media

So I've been with my boyfriend since February 28th and not once had he put me on his social media except Snapchat when he was laughing at something I did, but nothing serious. He doesn't have i"n a relationship" on his Facebook or even a little lock emoji in his Instagram bio. He doesn't put photos of us up either. I want to know if I'm overreacting by being hurt or not.  When I did post something of him on Facebook he didn't even like it. I'm confused as to if he's embarrassed by me or not. I don't want to pressure him into doing it. I want him to do it of free will.