Maybe its me?.....

My husband and I use to have sex a lot. Like every night or every other night. It's just after we got married 7 months ago that he seems to have lost interest. I've tried to spice it up, outfits, positions, sexy talk, just about everything. He will not talk to me about what is wrong and insists nothing is, he gets really mad when I push a little so I end up just letting it go so he doesn't get mad. He has a hard time getting turned on by me, he rushes the sex, he just lays there like he is bored. I'm it my wit's end. He does watch porn, but idk if that's the problem. He doesn't have anything wrong like erectile disfunction, he just seems bored and such. Any ideas what else could be wrong? Is it me? Idk what to do....