help! my husband and I are newly married and I need advice for sexual troubles!

My husband never seems to want to have sex. We have sex like once a week and we have been married for 7 months! It's been like this our entire relationship though. I feel like he has no sex drive. We have talked about it so many times. He says he tries but it seems it doesn't make a difference. He also doesn't get a boner from seeing me naked or touching each other while making out. The only way for him to get hard is for actual touching to his penis. I have never experienced this in any other sexual relationship so it's kind of a turn off. 
Has anyone had that happen with their sexual partner not getting hard unless being touched? How did you deal with it? How did you keep the bedroom alive? 
Anyone have any tips for getting him to want to have sex more or raise his sex drive?